题目内容
| 脱式计算(能简算要用简便方法计算). (1)56×(
| (2)9.75-3.42-5.58 | (3)2.1×0.5÷4.2 | ||||||||||||||||
(4)
| (5)(1-
| (6)35÷[(
|
(1)56×(
=56×
=24-21, =3; (2)9.75-3.42-5.58, =9.75-(3.42+5.58), =9.75-9, =0.75; (3)2.1×0.5÷4.2, =2.1÷4.2×0.5, =0.5×0.5, =0.25; | ||||||||||||||||||||
(4)
=(
=
=
|
| 8 |
| 15 |
| 1 |
| 2 |
| 4 |
| 5 |
=
| 11 |
| 15 |
| 5 |
| 4 |
=
| 11 |
| 12 |
(6)35÷[(
| 5 |
| 6 |
| 2 |
| 3 |
=35÷[
| 1 |
| 6 |
=35×2,
=70.
练习册系列答案
相关题目