题目内容
计算(1)(-2)2-5÷(-
)-|-2|
(2)1-(
-
-
)×(-12)
| 1 |
| 5 |
(2)1-(
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 12 |
(1)原式=4-5×(-5)-2
=4+25-2
=27;
(2)原式=1-(
-
-
)×(-12)
=1-
×(-12)
=1+1
=2.
=4+25-2
=27;
(2)原式=1-(
| 6 |
| 12 |
| 4 |
| 12 |
| 1 |
| 12 |
=1-
| 1 |
| 12 |
=1+1
=2.
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