问题 解答题

按要求列竖式计算.

(1)带★的要验算.

3.7×0.26=★

39.78÷1.3=★

9.6728÷2.14=

(2)得数保留两位小数.

11÷900.2704÷133.87×2.45.

答案

(1)3.7×0.26=0.962;

3.7
×0.26

.
222

74
0.962

验算:

0.26
×3.7

.
182

78
0.962

39.78÷1.3=30.6;

30.6
13397.8

39
78

78
0

验算:

30.6
×1.3

.
918

306
39.78

9.6728÷2.14=4.52;

4.52
214967.28

856
1112

1070
428

428
0

(2)11÷90≈0.12;

0.122
90110

90
200

180
200

180
20

0.2704÷13≈0.02;

0.0208
130.2704

26
104

104
0

3.87×2.45≈9.48.

3.87
×2.45

.
1935

1548
774

.
9.4815

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