题目内容
笔算下面各题.
①6.05-3.49 ②7.2×0.15 ③4.2÷4.5.
①6.05-3.49 ②7.2×0.15 ③4.2÷4.5.
(1)6.05-3.49=2.56;
6.05
-
(2)7.2×0.15=1.08;
7.2
(3)4.2÷4.5≈0.93.
0.933
4.5
6.05
-
| 3.49 |
| 2.56 |
(2)7.2×0.15=1.08;
7.2
| ×0.15 |
| 360 |
| 72 |
| 1.080 |
(3)4.2÷4.5≈0.93.
0.933
4.5
| 4.200 |
| 405 |
| 150 |
| 135 |
| 150 |
| 135 |
| 15 |
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