文档文本内容
速算单项作业九
练习一：加、减、乘法
题干
求和
8392
4619
3665
6797
3031
9988
2331
3809
23473
19159
题干
728
-
199
937
-
326
611
-
345
573
-
219
529
611
266
354
题干
794
×
15.70%
381
×
9.30%
538
×
11.60%
459
×
38.30%
124.7
35.4
62.4
175.8
题干
281
×
8.40%
742
×
36.10%
385
×
15.70%
274
×
70.60%
23.6
267.9
60.4
193.4
练习二：除法拆分、分数大小比较
601
141.75%
912
199.56%
424
457
747
17.71%
479
5.90%
4218
8113
6304
194.21%
6227
293.04%
3246
2125
365
9.51%
644
7.08%
3838
9095
381
7.51%
1362
38.96%
5072
3496
883
161.43%
462
7.64%
547
6044
118
1.68%
655
6.86%
7009
9545
比较分数大小
①
390
>
428
②
498
<
393
5269
5972
2370
1736
③
539
<
686
④
390
<
369
1556
1723
9238
8386
练习三：假设分配/“415”份数法
题干
9461
7.40%
8149
17.10%
15879
9.90%
8809
652
6959
1190
14449
1430
题干
78290
27.70%
24505
19.90%
84915
9.20%
61308
16982
20438
4067
77761
7154
题干
8456
12.30%
58322
52.60%
23221
46.10%
7530
926
38219
20103
15894
7327
题干
84512
25.60%
1735
23.70%
28777
18.90%
67287
17225
1403
332
24203
4574
题干
3214
-4.50%
96579
-5.10%
5196
-6.90%
3365
-151
101769
-5190
5581
-385
