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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