题目内容
计算:
(1)(-4)-(+13)+(-5)-(-9)
(2)(+
)-
-
+(-
)
(3)(
-
+
)×(-36)
(4)-32×(-2)+42÷(-2)3.
(1)(-4)-(+13)+(-5)-(-9)
(2)(+
| 3 |
| 2 |
| 5 |
| 12 |
| 5 |
| 2 |
| 7 |
| 12 |
(3)(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 9 |
(4)-32×(-2)+42÷(-2)3.
(1)原式=-4-13-5+9=-22+9=-13;
( 2)原式=
-
-
-
=(
-
)-(
+
)=-1-1=-2;
(3)原式=
×(-36)-
×(-36)+
×(-36)=-9+6-4=-7;
(4)原式=-9×(-2)+16÷(-8)=18-2=16.
( 2)原式=
| 3 |
| 2 |
| 5 |
| 2 |
| 5 |
| 12 |
| 7 |
| 12 |
| 3 |
| 2 |
| 5 |
| 2 |
| 5 |
| 12 |
| 7 |
| 12 |
(3)原式=
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 9 |
(4)原式=-9×(-2)+16÷(-8)=18-2=16.
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