题目内容
计算:
(1)-17-(-23)+(-13)-(+23)
(2)(
-
-
)×12
(3)42013×(
)2012÷(-2)2
(4)-14-(-
)2×|-5-3|÷(-
)3.
(1)-17-(-23)+(-13)-(+23)
(2)(
| 3 |
| 4 |
| 1 |
| 6 |
| 1 |
| 12 |
(3)42013×(
| 1 |
| 4 |
(4)-14-(-
| 1 |
| 2 |
| 1 |
| 2 |
(1)原式=-17+23-13-23
=23-53
=-30;
(2)原式=9-2-1
=6;
(3)原式=(4×
)2012×4÷4
=1;
(4)原式=-1-
×8×(-8)
=-1+16
=15.
=23-53
=-30;
(2)原式=9-2-1
=6;
(3)原式=(4×
| 1 |
| 4 |
=1;
(4)原式=-1-
| 1 |
| 4 |
=-1+16
=15.
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