题目内容
计算下列各题.(能简算的要简算)
3.6-2.84+7.4-7.2
(4-0.2)÷1.9+0.1
×[1-(
-
)]
÷23+
×
.
3.6-2.84+7.4-7.2
(4-0.2)÷1.9+0.1
| 4 |
| 29 |
| 3 |
| 4 |
| 3 |
| 8 |
| 8 |
| 17 |
| 1 |
| 23 |
| 9 |
| 17 |
(1)3.6-2.84+7.4-7.2,
=(3.6+7.4)-(2.84+7.2),
=11-10.04,
=0.96;
(2)(4-0.2)÷1.9+0.1,
=3.8÷1.9+0.1,
=2+0.1,
=2.1;
(3)
| 4 |
| 29 |
| 3 |
| 4 |
| 3 |
| 8 |
=
| 4 |
| 29 |
| 3 |
| 8 |
=
| 4 |
| 29 |
| 5 |
| 8 |
=
| 5 |
| 58 |
(4)
| 8 |
| 17 |
| 1 |
| 23 |
| 9 |
| 17 |
=
| 8 |
| 17 |
| 1 |
| 23 |
| 1 |
| 23 |
| 9 |
| 17 |
=(
| 8 |
| 17 |
| 9 |
| 17 |
| 1 |
| 23 |
=1×
| 1 |
| 23 |
=
| 1 |
| 23 |
练习册系列答案
相关题目