文档内容
速算单项作业一
练习一:加、减、乘法
题干 求和 2921 4645 7198 5066 1347 5992 8084 3539
19830 18962
题干 635 - 226 993 - 329 611 - 598 797 - 625
409 664 13 172
题干 855 × 11.50% 752 × 8.20% 236 × 12.20% 166 × 33.90%
98.3 61.7 28.8 56.3
题干 455 × 6.60% 776 × 20.80% 402 × 9.10% 815 × 62.40%
30.0 161.4 36.6 508.6
练习二:除法拆分、分数大小比较
711 797
105.33% 166.39%
675 479
108 535
1.60% 14.43%
6764 3708
3152 3712
35.92% 77.69%
8774 4778
707 204
14.74% 10.99%
4797 1856
278 4955
4.86% 344.58%
5716 1438
652 298
153.41% 5.15%
425 5785
256 468
3.86% 37.77%
6627 1239
比较分数大小
① 138 233 ② 890 997
< <
5399 7556 3307 3583
③ 187 142 ④ 810 730
8928 > 7562 7097 > 6480练习三:假设分配/“415”份数法
题干 9234 6.60% 7252 3.50% 56572 8.50%
8662 572 7007 245 52140 4432
题干 35475 5.10% 41968 9.90% 90648 11.30%
33754 1721 38187 3781 81445 9203
题干 9626 24.60% 41120 27.70% 88176 13.60%
7726 1900 32200 8920 77620 10556
题干 13463 52.80% 4537 12.50% 43179 39.20%
8811 4652 4033 504 31019 12160
题干 7242 -8.50% 26438 -5.30% 5306 -6.40%
7915 -673 27918 -1480 5669 -363