题目内容
用简便方法计算.
×4+
×2
(
-
+
)×12
0.125×25×32.
| 5 |
| 6 |
| 5 |
| 6 |
(
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 4 |
0.125×25×32.
(1)
×4+
×2,
=
×(4+2),
=
×6,
=5;
(2)(
-
+
)×12,
=
×12-
×12+
×12,
=4-2+3,
=5;
(3)0.125×25×32,
=0.125×25×4×8,
=(0.125×8)×(25×4),
=1×100,
=100.
| 5 |
| 6 |
| 5 |
| 6 |
=
| 5 |
| 6 |
=
| 5 |
| 6 |
=5;
(2)(
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 4 |
=
| 1 |
| 3 |
| 1 |
| 6 |
| 1 |
| 4 |
=4-2+3,
=5;
(3)0.125×25×32,
=0.125×25×4×8,
=(0.125×8)×(25×4),
=1×100,
=100.
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