题目内容
| 脱式计算(能简算的要简算) (
| (1-
| ||||||||||||
1.25+
| 3.64÷4+4.36×25% |
(1)(
+
-
)×4×5,
=
×4×5+
×4×5-
×4×5,
=5+4-6,
=3;
(2)(1-
×
)÷
,
=(1-
)÷
,
=
÷
,
=
×
,
=1
;
(3)1.25+
-
-
,
=1.25+0.75-(
+
),
=2-
,
=1
;
(4)3.64÷4+4.36×25%,
=3.64×
+4.36×
,
=(3.64+4.36)×
,
=8×
,
=2.
| 1 |
| 4 |
| 1 |
| 5 |
| 3 |
| 10 |
=
| 1 |
| 4 |
| 1 |
| 5 |
| 3 |
| 10 |
=5+4-6,
=3;
(2)(1-
| 3 |
| 4 |
| 5 |
| 12 |
| 9 |
| 16 |
=(1-
| 5 |
| 16 |
| 9 |
| 16 |
=
| 11 |
| 16 |
| 9 |
| 16 |
=
| 11 |
| 16 |
| 16 |
| 9 |
=1
| 2 |
| 9 |
(3)1.25+
| 3 |
| 4 |
| 12 |
| 19 |
| 5 |
| 19 |
=1.25+0.75-(
| 12 |
| 19 |
| 5 |
| 19 |
=2-
| 17 |
| 19 |
=1
| 2 |
| 19 |
(4)3.64÷4+4.36×25%,
=3.64×
| 1 |
| 4 |
| 1 |
| 4 |
=(3.64+4.36)×
| 1 |
| 4 |
=8×
| 1 |
| 4 |
=2.
练习册系列答案
相关题目