题目内容
计算,能简算要简算
24×(
|
| 375+450÷18×25 | 2.5×1.25×32. |
(1)24×(
+
-
),
=24×
+24×
-24×
,
=6+3-4,
=9-4,
=5;
(2)
÷[(
+
)×
],
=
÷[
×
],
=
÷
,
=4;
(3)375+450÷18×25,
=375+25×25,
=375+625,
=1000;
(4)2.5×1.25×32,
=2.5×1.25×(4×8),
=(2.5×4)×(1.25×8),
=10×10,
=100.
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 6 |
=24×
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 6 |
=6+3-4,
=9-4,
=5;
(2)
| 4 |
| 5 |
| 1 |
| 3 |
| 2 |
| 5 |
| 3 |
| 11 |
=
| 4 |
| 5 |
| 11 |
| 15 |
| 3 |
| 11 |
=
| 4 |
| 5 |
| 1 |
| 5 |
=4;
(3)375+450÷18×25,
=375+25×25,
=375+625,
=1000;
(4)2.5×1.25×32,
=2.5×1.25×(4×8),
=(2.5×4)×(1.25×8),
=10×10,
=100.
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