题目内容
计算
(1)(-
)+(-
)+(-
)+(+
)
(2)(
+
-
)×(-36)
(3)-24+5×(-3)-6÷(-
)
(4)(1-
)÷(-
)+(-2)2×(-3)
(5)-16-[-2-(-3)3]-|
-(0.5)2|
(6)0.7×1
+2
×(-15)+0.7×
+
×(-15).
(1)(-
| 1 |
| 6 |
| 2 |
| 7 |
| 5 |
| 6 |
| 5 |
| 7 |
(2)(
| 1 |
| 2 |
| 5 |
| 6 |
| 7 |
| 12 |
(3)-24+5×(-3)-6÷(-
| 1 |
| 6 |
(4)(1-
| 2 |
| 3 |
| 1 |
| 6 |
(5)-16-[-2-(-3)3]-|
| 1 |
| 8 |
(6)0.7×1
| 4 |
| 9 |
| 3 |
| 4 |
| 5 |
| 9 |
| 1 |
| 4 |
(1)原式=-1+
=-
;
(2)原式=-18-30+21=-27;
(3)原式=-16-15+36=5;
(4)原式=
×(-6)+4×(-3)=-2-12=-14;
(5)原式=-1-(-2+27)-|
-
|=-1-25-
=-26
;
(6)原式=0.7×(1
+
)+(2
+
)×(-15)=0.7×2+3×(-15)=1.4-45=-43.6.
| 3 |
| 7 |
| 4 |
| 7 |
(2)原式=-18-30+21=-27;
(3)原式=-16-15+36=5;
(4)原式=
| 1 |
| 3 |
(5)原式=-1-(-2+27)-|
| 1 |
| 8 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 8 |
(6)原式=0.7×(1
| 4 |
| 9 |
| 5 |
| 9 |
| 3 |
| 4 |
| 1 |
| 4 |
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