题目内容
计算题:
(1)5
-9
+
; (2)
÷
×
.
(1)5
| 12 |
|
| 1 |
| 2 |
| 48 |
1
|
2
|
1
|
(1)原式=10
-3
+2
=9
.
(2)原式=
÷
×
=
=1.
| 3 |
| 3 |
| 3 |
=9
| 3 |
(2)原式=
|
|
|
=
|
=1.
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题目内容
| 12 |
|
| 1 |
| 2 |
| 48 |
1
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2
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1
|
| 3 |
| 3 |
| 3 |
| 3 |
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