题目内容
用最喜欢的方法计算.
12.5×38×0.8
(8.5-4)×(0.32÷1.6)
6.5×4.6+6.5×15
4
÷[
+(1-
)].
12.5×38×0.8
(8.5-4)×(0.32÷1.6)
6.5×4.6+6.5×15
4
| 9 |
| 8 |
| 3 |
| 4 |
| 1 |
| 8 |
(1)12.5×38×0.8,
=12.5×0.8×38,
=10×38,
=380;
(2)(8.5-4)×(0.32÷1.6),
=4.5×0.2,
=0.9;
(3)6.5×4.6+6.5×15,
=6.5×(4.6+15),
=6.5×19.6,
=127.4;
(4)4
| 9 |
| 8 |
| 3 |
| 4 |
| 1 |
| 8 |
=4
| 9 |
| 8 |
| 3 |
| 4 |
| 7 |
| 8 |
=4
| 9 |
| 8 |
| 13 |
| 8 |
=
| 41 |
| 13 |
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