100以内连加减混合题（精选5篇）
9335 = 63 + 139 = 4844 = 15 + 4 + 6 = 8 + 3361 + 36 = 24 + 765 = 24 + 24 + 9 = 77 + 5 + 11 = 6 + 838455 = 7420 + 30 = 831517 + 37 = 100-2050 + 34 = 7 + 77 + 12 = 9020 = 15 + 8 + 70 = 6 + 8648 = 8750 = 1515 + 68 = 26 + 641719 + 8 = 766895 = 13 + 834785 = 9924-10 = 39 + 46 + 11 = 7521 = 75 + 629 +36 = 38 + 219 + 44 = 9013 = 37 + 45 + 17 = 7651 +15 = 8726 = 8244 = 35 + 3717 +49 = 7911 = 9228 = 4416 +52 = 7 + 8315 + 38 = 9460 = 5362 + 45 = 1561 +13 =
100以内连加连减混合口算题
9059 + 59 = 6429 + 38 = 34 + 5869 + 36 = 5026 + 45 = 8548 = 7257 + 36 = 9223 + 25 = 24 + 2826 + 43 = 55 + 3938 = 8619 + 48 = 23 + 1954 = 6417 + 29 = 29 + 4315 + 19 = 6469 = 55 + 3938 + 29 = 6418 = 3326 = 9016 = 45 + 1947 + 44 = 24 + 6815 + 19 = 17 + 48 + 27 = 8655 = 49 + 4529 + 38 = 9518 + 14 = 8223 = 57 + 2739 + 29 = 14 + 4711 + 25 = 37 + 3948 = 9124 = 5117 + 29 = 7526 = 32 + 5966 = 6029 + 38 = 67 + 1917 + 29 = 6144 + 27 = 9911 = 6025 = 9633 = 58 + 3539 + 14 = 67 + 1938 + 43 = 7258 = 8157 = 6848 + 17 = 8128 = 6865 + 68 = 5032 + 18 = 39 + 4226 + 48 = 16 + 27 + 38 = 47 + 4459 + 57 = 9449 = 38 + 17 + 19 = 8656 = 9415 = 13 + 5946 = 8629 + 48 = 9049 = 8644 + 53 = 24 + 6863 = 77 + 1823 + 37 = 7529 = 5015 = 8057 + 46 = 5263 = 8228 = 7256 = 52 + 1931 + 44 = 35 + 39 + 19 = 7529 = 9335 = 45 + 2816 + 55 = 66 + 2732 = 46 + 2556 = 35 + 3723 + 52 = 25 + 6836 = 29 + 1325 + 68 = 6814 + 25 = 5032 = 44 + 1838 + 19 = 6135 = 9763 + 49 = 16 + 5937 = 5338 = 17 + 3734 + 13 = 6856 = 9455 =
100以内连加连减混合口算题 + 6536 = 29 + 2258 = 12 + 191929 = 13 + 3824 + 14 = 4212 = 6235 = 6418 = 17 + 6755 = 7217 + 28 = 67 + 1557 + 46 = 13 + 6844 = 7548 + 35 = 9417 = 9226 + 19 = 42 + 2614 + 18 = 28 + 27 + 26 = 3436 = 7254 + 17 = 9718 = 8646 = 48 + 4365 + 69 = 27 + 5748 = 28 + 4558 = 37 + 4449 = 53 + 1867 = 77 + 1775 = 8115 = 9347 = 5247 + 49 = 7255 + 14 = 68 + 1627 + 19 = 49 + 3615 = 8272 + 79 = 7626 + 56 = 4656 = 29 + 3559 = 7038 = 8364 = 18 + 4312 = 6228 =
100以内连加连减混合口算题
8211 + 36 = 68 + 2425 + 44 = 9849 = 68 + 1452 = 9873 + 25 = 14 + 6957 + 46 = 29 + 3533 = 15 + 4663 = 29 + 2532 = 5565 = 814919 + 43 = 57 + 1815 = 7673 + 27 = 4868 + 34 = 4049 + 17 = 14 + 4754 + 43 = 26 + 5536 = 19 + 7335 + 47 = 8638 + 27 = 14 + 4744 = 9576 + 27 = 19 + 7346 = 38 + 19 + 29 = 19 + 7236 = 35 + 3619 + 58 = 9029 = 55 + 3726 = 5269 + 55 = 39 + 3729 + 12 = 8118 = 72 + 192825 + 44 = 6359 = 5436 + 17 = 7113 + 47 = 18 + 2479 = 9728 + 65 = 6115 = 9517 + 28 = 7627 + 18 = 36 + 452823 + 24 = 4066 = 4036 + 17 = 18 + 7767 = 6277 + 64 = 9026 = 5037 = 26 + 5513 = 59 + 341832 = 5539 + 39 = 9024 = 8315 = 6719 = 46 + 2048 + 18 = 9018 = 9025 = 4049 + 17 = 9347 + 55 = 26 + 5536 = 7422 + 48 = 8638 + 27 = 7577 = 18 + 4659 = 9224 + 23 = 14 + 682836 + 35 = 805919 + 35 = 8115 + 18 = 7618 = 7262 = 9116 = 7137 = 9535 + 48 = 7549 = 62 + 2935 + 32 = 69 + 2629 + 33 = 9549 + 66 = 8449 = 36 + 4518 = 6038 = 8316 = 8844 + 29 = 6237 = 5 + 9572 = 7741 + 78 = 9026 = 9748 = 8871 + 71 = 9356 + 50 = 6620 = 14 + 461 = 54 + 1761 = 37 + 2015 = 9267 = 60 + 2262 = 6517 = 491 = 6878 = 72 + 1450 = 71 + 1410 + 55 = 8647 + 41 = 63 + 42 = 49 + 4216 + 64 = 6921 = 7932 = 66 + 2652 + 81 = 6323 + 8 = 1 + 1538 = 14 + 2122 + 24 = 3442 + 6 = 50 + 3579 + 81 = 43 + 5731 = 724 = 13 + 6984 + 53 = 19 + 4126 + 63 = 8319 + 8 = 34 + 6515 = 19 + 5316 = 7624 = 5287 + 86 = 56 + 2743 = 7321 = 17 + 5416 + 33 = 3716 + 33 = 43 + 3567 = 31 + 6450 = 36 + 581 = 23 + 5953 = 733 = 9255 = 8342 = 3713 + 10 = 6286 = 15 + 8322 + 74 = 14 + 5587 + 95 = 9714 = 9326 = 6113 = 9542 + 23 = 5773 = 9254 = 8716 + 33 = 6293 = 44 + 5550 + 69 = 28 + 1448 = 6020 = 49 + 3854 + 43 = 4992 = 5764 + 50 = 39 + 4077 + 39 = 70 + 2544 + 10 = 8769 = 9976 + 37 = 6547 = 8517 + 4 = 7917 + 7 = 7278 = 714 = 30 + 147 + 23 = 4 + 6654 = 3668 = 8 + 6846 + 32 =
100以内连加连减混合口算题
5127 + 30 = 30 + 3446 + 33 = 6040 = 38 + 4056 + 35 = 31 + 6242 = 35 + 2458 = 4132 = 13 + 1928 = 8 + 6625 = 61 + 367 + 68 = 35 + 5822 = 819 + 10 = 85 + 11 + 12 = 64 + 769 + 47 = 9826 + 24 = 1 + 4638 = 41 + 3125 + 77 = 3 + 7026 + 55 = 50 + 2441 = 51 + 2926 = 74 + 2619 + 49 = 30 + 675 = 6916 = 79 + 1837 = 87 + 1061 = 7 + 702 + 51 = 8 + 8218 + 51 = 5324 + 2 = 9118 = 8230 + 41 = 53 + 2088 = 18 + 640 = 5546 = 8139 + 57 = 10 + 899 = 19 + 1316 + 82 = 100-61 + 33 = 28 + 3211 + 71 = 9346 = 49 + 336 = 34 + 529 + 25 = 78 + 1255 = 5330 + 5 = 10090 = 3 + 6918 = 6316 = 40 + 1481 = 7278 + 79 = 808 + 39 = 8081 + 39 = 52 + 1324 = 5842 = 37 + 2783 = 68 + 750 = 4634 + 62 = 8521 + 21 = 3950 = 6634 = 88 + 15 + 55 = 16 + 7373 = 16 + 6517 = 56 + 1643 + 27 = 11 + 4439 = 8751 = 64 + 423 = 90 + 1068 + 73 = 8512 + 42 = 9094 = 78 + 2259 + 63 = 69 + 641 + 77 = 59 + 3453 + 86 = 3 + 7110 = 77 + 1417 + 52 = 88 + 1032 = 9750 + 78 = 2 + 9618 = 64 + 3522 = 8470 + 73 = 3 + 5438 = 3 + 4652 = 2153 + 53 = 6180 = 61 + 2839 = 21 + 639 + 47 = 9245 = 2849 = 44 + 4219 + 19 = 4474 = 55 + 4488 = 6717 = 53 + 2768 + 54 = 1046 = 3 + 7827 + 85 = 72 + 128 = 16 + 3061 = 38 + 5460 + 65 = 19 + 4014 = 37 + 6054 + 74 = 69 + 268 + 41 = 25 + 213 + 45 = 67 + 1375 + 77 = 6282 + 60 = 7 + 4232 + 52 = 9834 + 28 = 6225 + 60 = 911 = 69 + 2853 = 33 + 5011 + 75 = 56 + 4114 = 9336 = 8147 = 8211 + 28 = 32 + 4313 = 24 + 7191 = 25 + 319 = 2244 = 6957 = 8471 = 8932 = 5016 + 3 = 12 + 8389 + 78 = 64 + 1559 + 17 = 7913 + 37 = 7949 = 2530 = 3 + 459 = 8858 = 20 + 6122 + 1 = 8414 + 34 = 7520 + 73 = 23 + 3935 + 66 = 13 + 821 = 366 = 929 + 31 = 14 + 454 + 40 = 7818 = 30 + 2524 + 69 = 7026 + 5 = 8962 = 63 + 141 + 5 = 8613 = 6245 = 9619 + 57 = 4 + 7054 + 41 = 7043 = 83 + 1649 + 83 = 69 + 1723 + 64 = 48 + 4312 + 47 = 7036 = 8571 = 8010 = 5661 = 4 + 7325 + 55 = 8343 = 52 + 862 + 69 = 3770 + 81 = 9931 + 72 = 9215 + 14 = 5834 = 14 + 5010 =
100以内连加连减混合口算题
+ 523 + 83 = 8960 + 74 = 23 + 5912 + 47 = 16 + 8043 = 9174 + 51 = 2619 + 29 = 9458 + 81 = 427 + 54 = 5661 + 85 = 76 + 35 + 76 = 16 + 2841 = 79 + 219 = 65 + 122 + 36 = 16 + 1771 + 70 = 23 + 359 = 5450 + 48 = 3713 + 13 = 8621 = 61 + 379 = 22 + 4246 = 14 + 7441 = 36 + 2838 = 9643 = 9225 = 3420 = 24 + 5868 = 83 + 457 + 34 = 7517 = 63 + 310 + 10 = 796 + 44 = 9766 = 56 + 823 + 67 = 29 + 3619 = 60 + 1580 + 78 = 8441 + 31 = 19 + 4523 + 67 = 7167 = 76 + 2280 + 78 = 14 + 5631 = 54 + 2173 + 96 = 813 = 9071 = 22 + 2674 + 59 = 64 + 479 + 45 = 7539 = 32 + 1031 = 44 + 5235 + 26 = 22 + 3612 + 57 = 64 + 2733 + 31 = 41 + 5442 + 55 = 8017 = 4 + 8166 = 48 + 3370 + 47 = 23 + 4549 + 64 = 9347 = 677 = 6850 = 6687 = 5532 + 31 = 9 + 7141 + 47 = 20 + 5448 + 36 = 9768 = 9445 + 80 = 9216 = 3022 = 4238 = 7429 + 66 = 297 = 2910 + 73 = 5541 + 36 = 648 = 7 + 2810 + 27 = 4862 = 18 + 6771 = 9340 = 10 + 6359 = 28 + 5710 = 89 + 448 = 7117 + 56 = 6 + 7318 + 18 = 37 + 313 + 91 = 8997 = 6236 + 68 = 893 + 41 = 100-52 + 19 = 22 + 1934 = 8837 + 50 = 971 + 49 = 4 + 8460 + 56 = 15 + 493 = 1084 = 6018 = 6217 = 77 + 577 = 7912 + 10 = 4513 + 22 = 6911 + 3 = 52 + 236 = 664 = 426 + 45 = 712 + 16 = 984 + 35 = 7269 + 74 = 4215 + 20 = 17 + 5323 + 91 = 956 + 14 = 4924 = 5 + 6991 = 8021 = 6054 + 27 = 26 + 3394 = 8114 + 11 = 4773 + 59 = 5823 + 52 = 5563 + 91 = 30 + 1677 + 71 = 7863 + 60 = 9068 + 69 = 9153 = 6041 + 14 =
100以内连加连减混合口算题
一、创设问题情境,培养学生的计算意识
在教学中为了避免枯燥无味的计算教学,我认为,首先要创设良好的问题情景,形成计算氛围,我们青岛版教材的特点是情境串教学,青岛版教材在知识结构和素材的选取令人耳目一新,尤其是“情境串”的教学很好地将知识融入到情境中去,将计算教学融入到“情境串”中学生更好理解一些.如:本节课是本单元的最后一个信息窗,也是和前四个信息窗串在一起的,是本单元的一个总结提升,所以开始我把前四个信息窗的情境串联在一起,谈话导入本课内容,一方面是对前几个信息窗的回顾, 另一方面激发学生的学习兴趣,潜移默化地梳理了本单元的知识. 具体是这样设计的:
谈话:同学们,前几天我们和丁丁一起来到了神奇的大海边赶海、摆贝壳,还参观了水族馆和标本馆,(课件展示窗1~4图片)收获可真多呀!
谈话:丁丁还捡到了许多漂亮的贝壳,(课件展示)她说这节课哪个小组会思考、会合作,就把贝壳送给他们,想得到吗? 那就看你们的表现吧! 丁丁的旅途就要结束了,今天她和妈妈又来到了大海边要买一些纪念品带回家,你们看:(课件出示窗1图)
提问:你能找到哪些数学信息? ……
引发出一系列的问题串,在解决一连串现实的、有挑战性的问题中,让学生经历知识与技能形成的过程,并把解决问题与知识技能的学习融为一个过程.
二、主动探索,让学生在学习过程中养成“再创造”的计算习惯
调动学生学习计算的积极性. 让学生通过观察、操作、思考、交流和应用,认识数学、理解数学、掌握数学,让学生在轻松愉悦的氛围中掌握知识. 其次要唤醒学生的生活经验,激活思维, 让学生体会到现实生活中有着大量的数学信息,只将各种知识灌输下去,学生被动地接受这些结果,所获得的知识只是形式的堆砌, 这是机械的学习. 在教学过程中要引导学生由被动机械的学习变为积极的、自主的、通过再加工的“再创造”式的学习,这样才能获得较好的效果. 例如,在学习了连减竖式的计算方法以后,学习连加竖式的写法,我大胆地放手让学生根据已有经验自己尝试着写出连加竖式,并计算出结果.
谈话:同学们帮丁丁解决了这个问题后,你想买点纪念品吗?
提问:你想买哪三样纪念品?
根据学生回答随机板贴:三样纪念品,你能提出什么问题? 谁会解决?
生列算式:连加A + B + C = .
你真棒! 列出了一道连加算式,你是怎样想的?
重点引导学生讲清思路:要求一共需要多少钱,就要把三样纪念品的价钱加起来. (巩固加法的意义)
谈话:说得好,谁来估计一下大约需要多少钱? 你怎样估计的?
提问:能用竖式计算出正确结果吗?
教师活动:发现竖式的不同写法,写在黑色卡纸上.学生可能出现的写法有:
学生投影展示:竖式写法,重点让学生说一说每一步先算什么,再算什么,求出的是什么? (强调运算顺序)
谈话:同学们请看黑板,这三种竖式的写法,你喜欢哪一种? 为什么?
那请你以后就用你喜欢的方法来计算,最重要的是要把结果算准确了!
我很惊讶学生能够想到这么多的算法,一般情况下我们老师会直接让学生选择法三,但是老师给学生主动探索的时间,每一种做法都给予肯定,并且紧跟追问什么情况下用这种方法比较合适. 当然在竖式写法板演时, 我有意设计突出了最简便的写法的好处, 让学生一眼就能发现. 从而自己选择最优方法,这一点难能可贵,在合作交流、与人分享、独立思考的氛围中,倾听、质疑、发展、提高. 这样引导学生通过再加工“再创造”地学习,将使学生获得充满活力的数学知识.在教学中有意识地引导学生, 使他们逐步养成具有发展性、创造性的计算习惯.
三、注重细节,扎实训练
学生在计算时产生错误的原因是多方面的,大致有三种情况:一种是由于某些知识不理解,学生在计算时并没有意识到是错误的. 另一种是基本口算不熟练,造成计算失误. 这两种错误我们主要从计算方法和加强口算训练方面进行纠正. 另一种错误是由于学习习惯不好,例如抄错、看错题目,计算过程不符合要求,没有验算的习惯,等等. 因此,培养学生计算能力的一个重要方面,是平常练习要严格要求,注重细节,使学生养成良好的计算习惯.
认真也是一种能力. 学生认真、细致的习惯是平时养成的,在教学中,我们教师严格要求学生,在学生做题时提醒他们要认真仔细,看清题目所表达的题意,看清题目中所提供的数据,以提高学生在解题时的准确性. 例如,在新课之后的一道加减混合的练习题:咪咪旅馆,这是让学生自主练习的题目,有个别学生就因为粗心而把27写成了72,这是一年级孩子经常会犯的共性的错误,孩子的思维有的时候是我们大人理解不到的, 于是我让做对的孩子来介绍一下自己的经验,怎样才能把题做对,怎样不会看错数、写错数. 孩子们发言很积极,各抒己见,踊跃地介绍自己的经验,而且很有成就感,做错的孩子听了他们的介绍以后,觉得很有道理,我想再出现这样的问题,学生就会吸取平时的教训,避免或减少错误的产生.
（一）72－2＝ 45－9＝ 86－8＝ 96－2＝ 24－9＝ 40－2＝ 46－9＝ 43－4＝ 18－2＝ 38－8＝ 35＋5＝ 85＋2＝ 59－4＝ 78＋10＝ 82－5＝ 64＋6＝ 3260－4＝ 1125＋4＝ 3688－4＝ 7656＋20＝ 6432＋6＝ 2943＋5＝ 8781－2＝ 6048－9＝ 47
40－2+8＝38－9+8＝39－2+7＝39－4-5＝62＋7+3＝ ＋7＝ 49－5＝ 63＋3＝ 84－2＝ ＋20＝ 45－3＝ 30＋8＝ 60－7＝ －5＝ 84＋4＝ 52－3＝ 71＋9＝ ＋0＝ 93－3＝ 18＋5＝ 70－5＝ ＋6＝ 65＋3＝ 15－3＝ 30－3＝ －7＝ 35＋2＝ 73＋4＝ 25＋4＝ ＋10＝ 39－3= 48－30= 95－40= ＋8＝ 39＋10＝ 76＋10＝ 70＋30＝ －8＝ 52－4＝ 43－8＝ 68－9＝ －9-3＝ 32－4+6＝ 41－2-9＝ －2+7＝ 72－2-5＝ 66－4+6＝ －9+4＝ 53＋5-5＝ 35＋2-8＝ ＋50-6＝ 20－1+6＝ 40＋6-7＝ －5-7＝ 63＋3+7＝ 34－2+9＝ 27 30 20 8 89
一年级100以内口算练习题
（二）18－2＝ 30＋8＝ 43＋1＝ 86＋2＝ 70＋3＝ 30－2＝ 72－2＝ 66－4＝ 39－2＝ 20－9＝ 53＋5＝ 35＋2＝ 39－4＝ 8＋50＝ 20－1＝ 16+9= 87+9= 48+8= 35+8= 4+19= 7+26= 4+37= 29+4= 19+8= 29+7= 7+38= 9+18= 40+6= 35+30= 62+8= 75+5= 23+7= 26+8= 19+60= 32+8= 16+9= 24+6= 5+37= 44+7= 67+9= 50+8= 61+9= 85+4= 91+8= 82+5= 39+1= 46+7= 23+7= 37+4= 78+3= 27+6= 39+8= 68+5= 9+25= 85+6= 92+4=
65+7-60= 65-7+7= 74+8-80= 84+9-90= 76-8+4= 6+54+7= 54-7+8= 93+7-60= 75+9-50= 6+60+20= 86+2-10= 48+7+5= 39+9-7= 2+38-6= 56+8+5= 36+5-7= 35+6+3= 46+9-4= 9+25-7= 23+8+6= 5+18= 17+3=
36+6= 2
29+5=
一年级100以内口算练习题
（三）19+6= 28+5= 53+6= 78+5= 37+9= 23+8= 89+6= 75+5= 86+6= 68+7= 87+9= 26+9= 25+6= 50+37= 49+7= 87+9= 50+8= 61+9= 85+4= 91+8= 82+5= 39+10= 46+7= 73+7= 37+4= 78+3= 27+60= 39+8= 68+5= 9+25= 35+6= 2+40= 86+2= 48+7= 39+10= 16+9= 5+18= 17+3= 36+6= 29+5= 87+9= 48+8= 35+8= 4+19= 7+26= 4+37= 29+4= 39+8= 26+7= 7+38= 6+18= 40+6= 35+30= 32+8= 25+5= 13+7= 86+8= 19+60= 54+9= 16+9=
0+82-60= 52+2-7= 53-20+6= 47+10+8= 53-50+47= 64+30-30= 29-20+9= 20+55-20= 4+66+30= 54+8-30= 6+20+30= 68-34-30= 9+28+20= 50-39+50= 60-33+20= 9+51-40= 95-65-30= 8+77+20= 41-41+10= 50-43+30=
一年级100以内口算练习题
（四）12＋6＝ 29－7＝ 33＋2＝ 3＋40＝ 15＋4＝ 23＋5＝ 37＋1＝ 29－3＝ 38－3＝ 15－4＝ 18－2＝ 30＋8＝ 43＋1＝ 86＋2＝ 70＋3＝ 30－2＝ 72－2＝ 66－4＝ 39－2＝ 20－9＝ 53＋5＝ 3540＋6＝ 6250－4= 11+2= 5332＋4＝ 2618－4＝ 6636＋3＝ 5811＋9＝ 8025＋7＝ 62
21-3+8= 24+8-4= 77+9+6= 53-7+20= 83+7-30= 23+9-8= 47+7-10= 27+9-26= 5+53+2= 68-58+6= 4+76+8= 30+32-8= 60-55+7= 3+75+5= 82-42-6= 77-77+7= 60-43-7= 50-25+8= 80-34+6= 78+6-10=
＋2＝ 39－4＝ 8＋50＝ 20＋7＝ 89－5＝ 63＋3＝ 34－3= 60+8= 80－5＝ 84＋4＝ 35－10＝＋10＝ 83－3＝ 71＋5＝ 60＋30＝ 28－7＝ 87－10＝－3＝ 95－4＝ 64＋3＝ 98－2＝ 83＋5＝ 83＋10＝4
－1＝ －2＝ －7= ＋9＝ －5＝ －6＝ －4＝ ＋8＝ 71 80 10
一年级100以内口算练习题
（五）34+6= 5+37= 14+7= 37+9= 57+8= 39+2= 27+4= 50+5= 32+8= 70+60= 39+50= 10+40= 6+10= 18+50= 74+6= 37+2= 26+50= 23+70= 47+4= 88+3= 47+6= 99+1= 68+5= 26+8= 19+60= 48+50= 23+6= 78+50= 87+9= 83+8= 19+6= 75+5= 36+6= 18+7= 47+9= 83+70= 67+40= 88+3= 47+6= 39+8= 56＋20＝ 6432＋6＝ 2943＋5＝ 8781－2＝ 60
86-12-15=
57+33+31=
88-34-18=
15+36+27=
51+42+53=
75-24-23=
86-12-15=
88-34-18=
32+(55-45)=
75-24-23=
63+12+42=
21+32+60=
77-65-6=
32+45+38=
57+33+31=
15+36+27=
72-(6+44)= 32+45+38=
53-37-15=
36+34-14=
44+5+12=
100-66-22=
72-45+32=
73-27+10=
67-37-22=
21+82+17=
65-33-18=
75-63-1=
45+15-47=
43+29+13=
17+27+10=
54-41+36=
33+17+15=
82-54+12=
58+45+3=
63+18+11= 54-52+17= 35-28-28= 55-38-15= 67-38+22= 75-36-10=
65-（39-15）
=
62+18+24=
54-21+18=
53-29-19=
35+（42-28）=
86-12-15=
57+33+31=
36-27+9=
89-54-18=
12+79-62=
51+42+53=
71-52+36=
75-24-23=
81-45+36=
63-12-42=
77-（19-16）= 85+36+27=
51-（27+18）=
97-65-6=
75-（34-26）=
32+45+38=
94-（16+40）= 53-37+15=
43+23+28=
（48-26）+18=
43+27+10=
54-21-18=
65-33+18=
（68-65）-3=
54+52+17=
76-63+1=
65+15+47=
43-29+13=
72+31+42=
17+27-10=
12＋29+19=
27＋12-8=
88-51-24=
63+（18-11）= 57-30-25=
35-（8+21）= 60-14-35=
55-（38-15）= 69-10-36=
53-(47-38)=
67-27-10=
33+17+15=
25+36-10=
22+（34-12）=
35＋12－28=
86－12－15=
27+33＋31=
71-19-16=
65-16+27=
51-27-18=
71-（22＋36）
55＋24+23=
81-（25＋36）
63＋12+42=
36+(27-9)=
28+34＋18=
12＋(29-12)=
51+42＋23=
=
74－24-26=
32＋45－38=
=
54－16-20=
52-17+15=
48-21-18=
21＋12+20=
36-14+15=
25-（12+11）=
21＋82－60=
43+5＋12=
100－46-22=
54－21－18=
21＋22＋17=
54－52＋17=
76－43-1=
65＋15－47=
43+29＋13=
57－38＋12=
72－（45-32）= 67－47＋22=
83－（27＋10）=
88－（51－24）43＋18＋11=
77－（34＋25）
35－18－21=
60－（34＋35）
= = =
17＋27+10=
55-32－15=
54－41＋36=
99-（28＋37）=
55＋15+30=
92－6-11=
42－37＋54=
12+30+23=
36+8+5=
51+42+53=
56+(34-20)=
56+(90-63)=
100-56-32=
53-7+26=
练习题一.53-(47-38)= 3.30-(22-11)= 4.13-(2+6)=.51-10+2= 28.27-(3+22)=
52.52-(16-8)=
53.3-(2+1)=
29.28-24+23= 30.31-(7+2)=
54.32-(7+12)=
55.18-(2+12)= 5.52-(51-47)= 6.5+1-2=.44-(16+14)= 8.85-72+4=.11-(4-3)=.53-38+11=.44-(16-8)=.4+87-48=
13.76-(69-55)= 14.41-67+55=.27-(18+2)=.4-(1+2)=.7-2+35=.6-(3-1)=.20-(19+1)=.50-(6-2)=.29+68-77=
22.76-(25-23)= 23.41-37+37=.84+1-56=.58-32+10=
31.19+35-3=
32.43-18+12=
33.83-(23+51)=
34.35+33-43=
35.5+68-38=
36.21+37-3=
37.76-(64-11)= 38.74+12-26=
39.75-(46+24)= 40.60-(24-6)=
41.7-(1-1)=
42.45-85+51=
43.42-26+45=
44.50+11-11=
45.42-(26-14)=
46.80-68+2=
47.66+2-18=
48.25+61-20=
49.58-34+13=
50.97-(4-1)=
/ 20
56.43-(42-5)= 57.23-(4+1)= 58.66-29+33=
59.79+14-15= 60.3-(2+1)= 61.67-43+32= 62.77-(63-37)=
63.94-(62+23)= 64.65-(54-50)=
65.66-(28+26)= 66.32+8-24= 67.25-(7-6)= 68.91-(86-71)= 69.46-(7-5)= 70.82+17-17=
71.38+59-48= 72.59-(51-44)= 73.55-(13+34)= 74.29-(25+2)= 75.53-32+31=
经典题目
练习题二 1.33-(27+1)= 2.68-30+17= 3.32+45-23= 4.65-(64+1)=.95-(64-2)=
51.67+2-19=
52.86-(8+22)=
53.24-(14+2)=
54.16-8+0=
27.26-24+12=.19-0+47=.83+15-22=.19-(4-2)=.54-(36-23)= 7.19-(16-4)=
8.26+27-23=
9.10+75-69=
10.44+41-54=
11.50-37+9=
12.49+18-42=
13.81-(42+7)=.29-19+60=
15.7-74+69=
16.52-83+42=
17.11-72+68=
18.12-(10-8)=
19.23-21+0=
20.46-(4-3)=
21.59+28-78=
22.79+15-33=
23.8-(2+1)=
24.18-12+2=
25.4+71-16=.25-(11-5)=
31.30-(19-4)=
32.42-(20-10)= 33.86-(49-2)=
34.37-(14+4)=
35.34-(30-24)= 36.28-(25-11)= 37.59-(57-8)=
38.38+33-45=
39.30-(17-3)=
40.54+25-41=
41.98-(37+12)= 42.56-19+19=
43.57-(21+24)= 44.38+5-23=
45.73-(3-2)=
46.62-37+16=
47.62-48+11=
48.30-(1+4)=
49.5+77-51=
50.1-(1+0)=
/ 20
55.71-(49+21)= 56.0-(0-0)= 57.40-62+50=
58.24-(6+7)= 59.37+44-76= 60.81-12+5= 61.30-(9+4)=
62.67+30-82= 63.70-(25+2)= 64.81-(64-56)= 65.23-(15+1)= 66.88-80+4=
67.15+1-7= 68.23-(16-6)=
69.60-22+32= 70.85+8-26= 71.72-(17+49)= 72.80-(18-12)= 73.20-(3+16)= 74.2+35-14= 75.22-(4+14)=
经典题目
练习题三 1.0+23-7=
26.15+78-57= 27.43-21+24=
51.63+30-60=
52.67+21-56= 53.68+30-18= 2.83-(39-11)= 3.74-19+13=
28.28-(24-22)= 29.87+9-86= 4.64-(57-54)=
54.83-(26-19)= 5.91-(88-49)= 6.78-(61+6)=.22-46+40=
8.78-(4+9)=.70-(47-46)= 10.66-(42-35)= 11.46-(2+18)=.37+32-26=
13.53-(8-7)=
14.76+18-73=
15.15-(5+1)=.44+36-50=
17.84+2-17=.78-(33+33)= 19.9+28-9=
20.30-17+9=
21.38-(36-8)=
22.76+6-80=
23.19-(6+5)=.69-(39-25)= 25.1-(1+0)=.32-(23+7)=
31.18-10+24=
32.64-13+17=
33.69+10-18=
34.61+34-3=
35.63-50+13=
36.83-13+2=
37.70-35+16=
38.89-(60+23)= 39.84-(72+1)=
40.2+71-52=
41.60-(26-3)=
42.38-(37+1)=
43.31+56-41=
44.79+16-48=
45.53-(24-13)= 46.13-20+15=
47.83-(13-11)= 48.73-13+21=
49.34-(5-1)=
50.55-(31+10)=
/ 20
55.12-(6-2)=
56.33-68+51= 57.16-58+57=
58.46-(25+2)= 59.36-(16-10)= 60.25+40-7= 61.93-(58-44)= 62.56+35-79= 63.24+5-21= 64.68-(26-1)=
65.53+5-55= 66.43-(17+18)= 67.88-(40-11)=
68.36-(35+1)= 69.50-(25+6)= 70.54-75+37=
71.2+44-25= 72.96-(64-22)=
73.49-(19+23)= 74.14-(7-1)= 75.44+37-79=
经典题目
练习题四 1.14-(8-2)= 2.77+13-19=
26.58-(9+14)=
27.64-(22-3)= 28.69-5+27=
51.9-(6-3)=
52.62+29-66=
53.43-(4+8)= 54.19+51-63= 3.89-(62+21)= 4.22+31-40=
29.99-(39+59)= 5.86-(24+45)= 6.91-(35-17)= 7.20-(6+11)=.19-(9-6)=.83-(65-37)= 10.9+0-6=
11.43-(15-8)=
12.84-48+14=
13.56-(5-3)=
14.33+40-0=.86-(65-37)= 16.1-(1-1)=
17.47-(7+25)=.21-(4-1)=
19.9-(3-1)=
20.93-(83+1)=.71-30+4=
22.2+27-3=
23.60+35-14=
24.67-35+13=
25.28-(13+6)=.6-(2+3)=
31.0+15-2=
32.43-40+0=
33.35-(18-17)= 34.17+76-21=
35.81-(23+52)= 36.65-(39+25)= 37.45+25-60=
38.88-(18-6)=
39.85+11-2=
40.68-(6-1)=
41.20-1+75=
42.49-50+26=
43.61-2+18=
44.99-(10+31)= 45.18-(13+4)=
46.12-(10+1)=
47.2+44-23=
48.42-75+49=
49.35-(21-10)= 50.51+13-57=
/ 20
55.7+12-15= 56.31+19-18= 57.10+44-48= 58.44-24+23=
59.18-(12+3)= 60.70-(48+1)= 61.33-68+55=
62.28+20-32= 63.39-(38-9)= 64.39-(7-3)= 65.62+20-46= 66.58-(19+5)= 67.49-76+37= 68.64-(46-11)= 69.38+43-22= 70.43+55-27= 71.36-(35+1)=
72.20+56-53= 73.67-(45+17)= 74.41-(11-1)=
75.45-83+45=
经典题目
练习题五 1.14-(8-2)= 2.77+13-19=
26.58-(9+14)=
27.64-(22-3)= 28.69-5+27=
51.9-(6-3)=
52.62+29-66=
53.43-(4+8)= 54.19+51-63= 3.89-(62+21)= 4.22+31-40=
29.99-(39+59)= 5.86-(24+45)= 6.91-(35-17)= 7.20-(6+11)=.19-(9-6)=.83-(65-37)= 10.9+0-6=
11.43-(15-8)=
12.84-48+14=
13.56-(5-3)=
14.33+40-0=.86-(65-37)= 16.1-(1-1)=
17.47-(7+25)=.21-(4-1)=
19.9-(3-1)=
20.93-(83+1)=.71-30+4=
22.2+27-3=
23.60+35-14=
24.67-35+13=
25.28-(13+6)=.6-(2+3)=
31.0+15-2=
32.43-40+0=
33.35-(18-17)= 34.17+76-21=
35.81-(23+52)= 36.65-(39+25)= 37.45+25-60=
38.88-(18-6)=
39.85+11-2=
40.68-(6-1)=
41.20-1+75=
42.49-50+26=
43.61-2+18=
44.99-(10+31)= 45.18-(13+4)=
46.12-(10+1)=
47.2+44-23=
48.42-75+49=
49.35-(21-10)= 50.51+13-57=
/ 20
55.7+12-15= 56.31+19-18= 57.10+44-48= 58.44-24+23=
59.18-(12+3)= 60.70-(48+1)= 61.33-68+55=
62.28+20-32= 63.39-(38-9)= 64.39-(7-3)= 65.62+20-46= 66.58-(19+5)= 67.49-76+37= 68.64-(46-11)= 69.38+43-22= 70.43+55-27= 71.36-(35+1)=
72.20+56-53= 73.67-(45+17)= 74.41-(11-1)=
75.45-83+45=
经典题目
练习题六 1.10-8+1=
26.60+38-61= 27.56-49+35= 28.56-(11-4)= 29.74+24-9=
51.92-(28+50)=
52.75-(65+3)=
53.26-(24+1)=
54.87-77+6= 2.92-(44+26)= 3.58-(39-14)= 4.51-(40+7)= 5.51-(18+5)=.54-18+45=
7.11+51-51=.94-(50-28)= 9.84-(49-20)= 10.87-8+2=
11.40-(38+1)=.57+30-35=
13.86+11-73=.90-(21+23)= 15.49-(16-13)= 16.94-(62-14)= 17.0-(0+0)=
18.26+51-73=.92-(15+26)= 20.62-30+14=
21.71-8+3=.52-(24+16)= 23.15-(4-2)=
24.15-9+11=
25.33-(5+4)=.83+0-4=
31.73-(60-51)= 32.23-(8+7)=
33.16-9+34=
34.14-(2-1)=
35.83-(10+11)= 36.58+5-43=
37.78-38+17=
38.68+21-58=
39.0+92-74=
40.93-(28+45)= 41.21+23-36=
42.38-(7+9)=
43.82+5-77=
44.23+66-60=
45.47-5+3=
46.36-19+9=
47.21+46-17=
48.50-(27+11)= 49.35-(3-1)=
50.9-(2-1)=
/ 20
55.21-(12-1)= 56.77+19-8=
57.82-51+15= 58.12+67-31= 59.84+15-9= 60.23-1+69=
61.34-7+36= 62.17+73-50= 63.87-(51-34)= 64.58-(15-6)= 65.73-13+26=
66.15-12+6= 67.64-1+1= 68.9+88-85= 69.26-(21+4)= 70.56+37-30=
71.42+48-39= 72.13-(10+1)= 73.1-(1-1)=
74.32-(12-9)= 75.67-(35+12)=
经典题目
练习题七 1.75+14-38= 2.12-(1+10)= 3.21-(12+5)= 4.83-58+10=.27-11+45=.20+9-10= 28.23-(6+7)=
51.46-35+16=
52.10+46-41=
53.38-(4-2)= 54.82-(35-17)=
29.64-(54-10)= 5.89+2-1=
6.66-47+13=
7.44-56+51=
8.46+41-44=
9.61-33+33=
10.2-(1+1)=
11.76-26+0=
12.47+32-62=.72-(60-18)= 14.89-(49+33)= 15.32-0+26=
16.52+20-62=
17.63+12-8=
18.30-(9-5)=
19.7-(2-1)=
20.82+9-1=.31-(17-14)= 22.58-(16+14)= 23.62-(53+7)= 24.53+40-42=
25.14-30+21=.44-(19+13)= 31.52-(13-10)= 32.30-(23-12)= 33.50-37+2=
34.30+58-53=
35.7+0-5=
36.37+39-74=
37.10-(7+1)=
38.68-(22-18)= 39.15+18-10=
40.12-(11+1)=
41.84-76+5=
42.41-29+27=
43.73+4-30=
44.5-0+88=
45.64+18-63=
46.6-(4+1)=
47.81-(77+3)=
48.1+0-0=
49.17-(10+1)=
50.26-6+18=
/ 20
55.19-(4-2)= 56.46-(15+9)= 57.37+18-7=
58.5-(2-1)= 59.85-(19-17)=
60.32+0-8= 61.20-18+64= 62.82+0-35= 63.44-20+24=
64.82-61+16= 65.7-(2+3)=
66.40-(10-8)= 67.68-(25+8)= 68.26+29-18= 69.99-(12+1)= 70.37+45-8= 71.48+13-35= 72.92-(15-2)=
73.37-(5-3)= 74.95-(75-69)= 75.57-(26-25)=
经典题目
练习题八 1.59-15+28= 2.51+32-22= 3.30+67-62= 4.38-(24-7)=
26.46-27+16=.36-15+14=.16-(1-1)=
51.53-21+19=
52.79-45+2=
53.76-(35-1)= 54.45+52-94=
29.80+5-2=.86-(27-21)= 6.13-(12+1)=.29-87+67=
8.4-(3-1)=
9.41+27-21=
10.9+87-16=
11.75-(8-4)=
12.16-56+50=
13.36+50-25=.56-(38-31)= 15.1+98-39=
16.29-33+14=.48-(45-14)= 18.71-59+5=.79-(12+19)= 20.95-(62-60)= 21.61+26-76=
22.39-1+4=
23.63-21+18=
24.73-38+25=.43-(16-12)=.35-16+11=
31.82-65+8=
32.26-(6-5)=
33.63-59+29=
34.63-(2+55)=
35.22-(7+9)=
36.47-(26+12)= 37.15+55-16=
38.65-56+10=
39.79-(63-35)=
40.88-16+5=
41.39-(11-4)=
42.47-28+25=
43.44-(2+16)=
44.56-(20+32)= 45.81+15-84=
46.17-(2-1)=
47.59-(32+26)= 48.79-(61+7)=
49.35+46-74=
50.77+8-46=
/ 20
55.15+30-0= 56.60-(28-18)= 57.97-(25+6)= 58.77-(7-2)= 59.59-21+34=
60.59-(49+2)= 61.22+41-38=
62.48-31+41= 63.3-(1+1)= 64.24-(15+2)=
65.22-(12+9)= 66.71+15-24= 67.58-66+17= 68.49+6-17= 69.53-(7-4)=
70.54+38-52= 71.60-(27-17)= 72.59-(14-1)= 73.49-(9-7)=
74.68-31+2= 75.60-(13+44)=
经典题目
练习题九.99-(35+40)= 2.28+59-25=.26-9+26=
51.68-(26+28)= 52.9+59-7=
27.73-(71-41)= 3.52-(28-24)= 4.65-(40-26)= 5.4+5-5=
6.97-(26-2)=
7.22-(3+16)=.54-24+0=
9.19-(9+9)=.0-(0-0)=
11.39+13-21=
12.86-8+5=
13.41-(17-9)=
14.65+6-43=
15.2-(1-1)=.54-(41-16)=.41-(32-26)=.35-57+50=
19.17-9+8=.83-(31-30)=.67-(27+5)=.74-(14+20)=.80-54+6=
24.18-9+0=
25.31-16+3=.17-(14+1)= 29.42-(2+11)=.76-(53-10)= 31.40-(29-23)= 32.59-0+13=
33.19-(2-1)=
34.60-(53-31)= 35.51-(45-33)= 36.34-29+0=
37.30-(8+19)= 38.15-(2+12)=
39.22-20+12=
40.52-75+44=
41.43+44-48=
42.97-(55-15)= 43.51-(28+13)= 44.57-(27+27)=
45.12-(11+1)=
46.80+16-54=
47.59+13-38=
48.89+8-65=
49.0-(0-0)=
50.48-37+1=
/ 20
53.90-(1+77)= 54.19-(18+1)= 55.16-(1-1)= 56.81+11-89=
57.40-(28+7)= 58.66-(33+21)= 59.92-(70+4)= 60.43-17+15=
61.47-(33-24)= 62.70+17-17= 63.54+38-14=
64.13+40-39= 65.63-(10+19)= 66.38-(22-3)= 67.16-40+26= 68.25-18+10= 69.16-(7-6)= 70.10+71-29=
71.35-(17-8)= 72.60-(53-28)= 73.76+2-15= 74.40-(8-5)= 75.71-(29-13)=
经典题目
练习题十.90-(57+18)=
26.17+44-58= 2.41+34-2= 3.26-(4+7)= 4.35-(3+12)=
27.5-(2-1)=.16-(4+6)=
29.55+21-69=
51.71+4-25=
52.86-(73-64)=
53.63-(13+31)=
54.63-(6+2)= 5.17-(16+1)=.8-65+62=
7.56+36-46=
8.17-(11+1)=.11-(6+4)=
10.51-(35+9)=.75-(47-35)=.92-(37+12)=.27-(24+2)= 14.21-(19+1)=.10-(9-4)=
16.43-(33+5)=.56+33-56=
18.88-(79+6)=.44-73+48=
20.29+40-40=
21.36-32+20=
22.65+17-78=
23.42-53+31=.55-(20-14)= 25.19+43-11=.4-(2-1)=
31.23+11-25=
32.38-(12+15)= 33.9+5-3=
34.1-(1-1)=
35.0-(0-0)=
36.38+59-29=
37.58-66+13=
38.3-3+31=
39.37-(10-5)=
40.4+75-74=
41.28-26+71=
42.89+1-3=
43.90-(37-16)=
44.34-14+64=
45.10-(8-6)=
46.38-(5-2)=
47.10-(2-1)=
48.79+14-55=
49.55-(32-11)=
50.4-(2-1)=
/ 20
55.46-(16+3)= 56.28-7+70= 57.55-(1+11)=
58.70-41+16= 59.54-(10+5)= 60.88-(22+29)= 61.30-8+23= 62.94-(31+50)= 63.32-2+4= 64.73-20+17= 65.30-1+3= 66.82-(71+5)= 67.84+14-87= 68.21-74+62=
69.96-(32+27)= 70.21+57-6= 71.23+57-23= 72.44-(17+25)= 73.94-(68+24)= 74.22+24-14=
75.61+38-91=
经典题目
练习题一答案 2.44 3.19 4.5.48 6.4.14 8.17 9.10 10.26 11.36 12.43 13.62 14.29 15.7 16.1.40 18.4 19.0.46 21.20 22.74 23.41 24.29 25.36.43 28.2.27 30.22 31.51 32.37 33.9
34.25 35.35 36.55 37.23 38.60 39.5
40.42 41.7
42.11 43.61 44.50 45.30 46.14 47.50 48.66 49.37 50.94
52.44 53.0 54.13 55.4 56.6 57.18 58.70 59.78 60.0 61.56 62.51 63.9 64.61 65.12 66.16 67.24 68.76 69.44 70.82 71.49 72.52 73.8 74.2 75.52 / 20
经典题目
练习题二答案 1.5.55 3.54 4.0.17 6.41 7.7.30 9.16 10.31 11.22 12.25 13.32 14.70 15.2.11 17.7.10 19.2.45 21.9.61 23.5 24.8.59
26.33 27.14 28.66 29.76 30.19 31.15 32.32 33.39 34.19 35.28 36.14 37.10 38.26 39.16 40.38 41.49 42.56 43.12 44.20 45.72 46.41 47.25 48.25 49.31 50.0
51.50 52.56 53.8 54.8 55.1 56.0 57.28 58.11 59.5 60.74 61.17 62.15 63.43 64.73 65.7 66.12 67.9 68.13 69.70 70.67 71.6 72.74 73.1 74.23 75./ 20
经典题目
练习题三答案 1.16 2.55 3.68 4.61 5.52 6.11 7.16 8.65 9.69 10.59 11.26 12.43 13.52 14.21 15.9.30 17.69 18.12 19.28 20.22 21.10 22.2 23.8.55 25.0.36 27.46 28.26 29.10 30.2
31.32 32.68 33.61 34.92 35.26 36.72 37.51 38.6
39.11 40.21 41.37 42.0
43.46 44.47 45.42 46.8
47.81 48.81 49.30 50.51.33 52.32 53.80 54.76 55.8 56.16 57.15 58.19 59.30 60.58 61.79 62.12 63.8 64.43 65.3 66.8 67.59 68.0 69.19 70.16 71.21 72.54 73.7 74.8 75./ 20
经典题目
练习题四答案 1.8.71 3.6.13 5.17 6.73 7.3.16 9.55 10.3.36 12.50 13.54 14.73 15.58 16.1.15 18.18 19.7 20.9.45 22.26 23.81 24.45 25.9
26.35 27.45 28.91 29.1 30.1
31.13 32.3
33.34 34.72 35.6 36.1
37.10 38.76 39.94 40.63 41.94 42.25 43.77 44.58 45.1 46.1
47.23 48.16 49.24 50.51.6 52.25 53.31 54.7 55.4 56.32 57.6 58.43 59.3 60.21 61.20 62.16 63.10 64.35 65.36 66.34 67.10 68.29 69.59 70.71 71.0 72.23 73.5 74.31 75./ 20
经典题目
练习题五答案 1.8.71 3.6.13 5.17 6.73 7.3.16 9.55 10.3.36 12.50 13.54 14.73 15.58 16.1.15 18.18 19.7 20.9.45 22.26 23.81 24.45 25.9.35 27.45 28.91 29.1 30.1
31.13 32.3
33.34 34.72 35.6 36.1
37.10 38.76 39.94 40.63 41.94 42.25 43.77 44.58 45.1 46.1
47.23 48.16 49.24 50.51.6 52.25 53.31 54.7 55.4 56.32 57.6 58.43 59.3 60.21 61.20 62.16 63.10 64.35 65.36 66.34 67.10 68.29 69.59 70.71 71.0 72.23 73.5 74.31 75./ 20
经典题目
练习题六答案 1.3.22 3.33 4.4.28 6.81 7.11 8.72 9.55 10.81 11.1.52 13.24 14.46 15.46 16.46 17.0 18.4.51 20.46 21.66 22.12 23.13 24.17 25.24
26.37 27.42 28.49 29.89 30.79 31.64 32.8
33.41 34.13 35.62 36.20 37.57 38.31 39.18 40.20 41.8
42.22 43.10 44.29 45.45 46.26 47.50 48.12 49.33 50.51.14 52.7 53.1 54.16 55.10 56.88 57.46 58.48 59.90 60.91 61.63 62.40 63.70 64.49 65.86 66.9 67.64 68.12 69.1 70.63 71.51 72.2 73.1 74.29 75./ 20
经典题目
练习题七 1.51 2.1 3.4.35 5.90 6.32 7.39 8.43 9.61 10.0.50 12.17 13.30 14.7.58 16.10 17.67 18.26 19.6.90 21.28 22.28 23.2.51 25.5
26.61 27.19 28.10 29.20 30.12 31.49 32.19 33.15 34.35 35.2 36.2 37.2
38.64 39.23 40.0
41.13 42.39 43.47 44.93 45.19 46.1 47.1 48.1 49.6
50.38
51.27 52.15 53.36 54.64 55.17 56.22 57.48 58.4 59.83 60.24 61.66 62.47 63.48 64.37 65.2 66.38 67.35 68.37 69.86 70.74 71.26 72.79 73.35 74.89 75.56 / 20
经典题目
练习题八答案 1.72 2.61 3.35 4.21 5.80 6.0 7.9 8.2.47 10.80 11.71 12.10 13.61 14.49 15.60 16.10 17.17 18.17 19.48 20.93 21.11 22.42 23.60 24.60 25.39
26.35 27.35 28.16 29.83 30.30 31.25 32.25 33.33 34.6 35.6 36.9
37.54 38.19 39.51 40.77 41.32 42.44 43.26 44.4
45.12 46.16 47.1
48.11 49.7
50.39
51.51 52.36 53.42 54.3 55.45 56.50 57.66 58.72 59.72 60.8 61.25 62.58 63.1 64.7 65.1 66.62 67.9 68.38 69.50 70.40 71.50 72.46 73.47 74.39 75./ 20
经典题目
练习题九 1.24 2.62 3.48 4.51 5.4.73 7.3.30 9.1 10.0.31 12.83 13.33 14.28 15.2.29 17.35 18.28 19.16 20.82 21.35 22.40 23.32 24.9.18 26.43 27.43 28.2.29 30.33 31.34 32.72 33.18 34.38 35.39 36.5 37.3 38.1
39.14 40.21 41.39 42.57 43.10 44.3 45.0
46.42 47.34 48.32 49.0
50.51.14 52.61 53.12 54.0 55.16 56.3 57.5 58.12 59.18 60.41 61.38 62.70 63.78 64.14 65.34 66.19 67.2 68.17 69.15 70.52 71.26 72.35 73.63 74.37 75.55 / 20
经典题目
练习题十答案 1.15 2.73 3.15 4.20 5.0 6.5.46 8.5 9.1 10.7.63 12.43 13.1 14.1 15.5 16.5.33 18.3.19 20.29 21.24 22.4.20 24.49 25.51
26.3 27.4 28.6 29.7 30.3 31.9
32.11 33.11 34.1 35.0
36.68 37.5
38.31 39.32 40.5
41.73 42.87 43.69 44.84 45.8
46.35 47.9
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