题目内容
计算下面各题.
| (76÷4+31)×40 | 492÷(4.3×2-0.4) | ||||||||||||
35×
|
|
(1)(76÷4+31)×40,
=(19+31)×40,
=50×40,
=2000;
(2)492÷(4.3×2-0.4),
=492÷(8.6-0.4),
=492÷8.2,
=60;
(3)35×
÷
-12,
=35×
×
-12,
=48-12,
=36;
(4)
÷[
×(
+
)],
=
÷[
×
],
=
÷
,
=
×10,
=
.
=(19+31)×40,
=50×40,
=2000;
(2)492÷(4.3×2-0.4),
=492÷(8.6-0.4),
=492÷8.2,
=60;
(3)35×
| 4 |
| 7 |
| 5 |
| 12 |
=35×
| 4 |
| 7 |
| 12 |
| 5 |
=48-12,
=36;
(4)
| 3 |
| 8 |
| 1 |
| 5 |
| 2 |
| 5 |
| 1 |
| 10 |
=
| 3 |
| 8 |
| 1 |
| 5 |
| 1 |
| 2 |
=
| 3 |
| 8 |
| 1 |
| 10 |
=
| 3 |
| 8 |
=
| 15 |
| 4 |
练习册系列答案
相关题目