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,
=(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+6.5×15.4,
=6.5×(4.6+15.4),
=6.5×20,
=130;
(4)
÷[
÷(1-
)],
=
÷[
÷
],
=
÷[
×
],
=
÷
,
=
×
,
=
.
=(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+6.5×15.4,
=6.5×(4.6+15.4),
=6.5×20,
=130;
(4)
| 9 |
| 8 |
| 3 |
| 4 |
| 1 |
| 8 |
=
| 9 |
| 8 |
| 3 |
| 4 |
| 7 |
| 8 |
=
| 9 |
| 8 |
| 3 |
| 4 |
| 8 |
| 7 |
=
| 9 |
| 8 |
| 6 |
| 7 |
=
| 9 |
| 8 |
| 7 |
| 6 |
=
| 21 |
| 16 |
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