题目内容
计算:
(1)8+(-10)+(-2)-(-5)
(2)2
-3
-5
+(-3
)
(3)8×(-
)÷|-16|
(4)18×(-
)+13×
-4×
(5)[30-(
+
-
)×(-36)]÷(-5)
(6)39
×(-12)
(1)8+(-10)+(-2)-(-5)
(2)2
| 1 |
| 7 |
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 7 |
(3)8×(-
| 4 |
| 5 |
(4)18×(-
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
(5)[30-(
| 7 |
| 9 |
| 5 |
| 6 |
| 11 |
| 12 |
(6)39
| 23 |
| 24 |
(1)原式=8-10-2+5=1;
(2)原式=2
-3
-3
-5
=-1-9=-10;
(3)原式=-8×
×
=-
;
(4)原式=-12+(13-4)×
=-12+6=-6;
(5)原式=[30-(-28-30+33)]÷(-5)=(30+25)÷(-5)=-11;
(6)原式=(40-
)×(-12)=-480+
=-479
.
(2)原式=2
| 1 |
| 7 |
| 1 |
| 7 |
| 2 |
| 3 |
| 1 |
| 3 |
(3)原式=-8×
| 4 |
| 5 |
| 1 |
| 16 |
| 2 |
| 5 |
(4)原式=-12+(13-4)×
| 2 |
| 3 |
(5)原式=[30-(-28-30+33)]÷(-5)=(30+25)÷(-5)=-11;
(6)原式=(40-
| 1 |
| 24 |
| 1 |
| 2 |
| 1 |
| 2 |
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