题目内容
用简便方法计算(要写出简算过程).
3.64+2.7+4.36(
+
)×12.
3.64+2.7+4.36(
| 1 |
| 4 |
| 1 |
| 6 |
(1)3.64+2.7+4.36,
=3.64+4.36+2.7,
=8+2.7,
=10.7;
(2)(
+
)×12,
=
×12+
×12,
=3+2,
=5.
=3.64+4.36+2.7,
=8+2.7,
=10.7;
(2)(
| 1 |
| 4 |
| 1 |
| 6 |
=
| 1 |
| 4 |
| 1 |
| 6 |
=3+2,
=5.
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