题目内容
(1)2.5×(
-
)+2.
(2)
÷
-
×
| 2 |
| 5 |
| 1 |
| 3 |
(2)
| 16 |
| 3 |
| 4 |
| 5 |
| 1 |
| 3 |
| 3 |
| 5 |
(1)原式=
(
-
)+2
=1-
+2
=2
;
(2)原式=
×
-
×
=
-
=
=6
.
| 5 |
| 2 |
| 2 |
| 5 |
| 1 |
| 3 |
=1-
| 5 |
| 6 |
=2
| 1 |
| 6 |
(2)原式=
| 16 |
| 3 |
| 5 |
| 4 |
| 1 |
| 3 |
| 3 |
| 5 |
=
| 20 |
| 3 |
| 1 |
| 5 |
=
| 97 |
| 15 |
| 7 |
| 15 |
练习册系列答案
相关题目