题目内容
计算:
(1)-3+10-5
(2)-0.5+(-15)-(-17)-|-12|
(3)-3.5÷
×(-
)
(4)(
+
-
)×(-36)
(5)-2×(-
)2+|-2|3-(-
)
(6)-14+〔1-(1-0.5×2)〕÷|2-(-3)2|
(1)-3+10-5
(2)-0.5+(-15)-(-17)-|-12|
(3)-3.5÷
| 7 |
| 8 |
| 3 |
| 4 |
(4)(
| 1 |
| 2 |
| 5 |
| 6 |
| 7 |
| 12 |
(5)-2×(-
| 1 |
| 2 |
| 1 |
| 2 |
(6)-14+〔1-(1-0.5×2)〕÷|2-(-3)2|
(1)原式=-3-5+10
=2;
(2)原式=-0.5-15+17-12
=-27.5+17
=-10.5;
(3)原式=-
×
×(-
)
=3;
(4)原式=-(
×36+
×36-
×36)
=-(18+30-21)
=-27;
(5)原式=-2×
+8+
=-
+8+
=8;
(6)原式=-1+[1-0]÷7
=-1+
=-
.
=2;
(2)原式=-0.5-15+17-12
=-27.5+17
=-10.5;
(3)原式=-
| 7 |
| 2 |
| 8 |
| 7 |
| 3 |
| 4 |
=3;
(4)原式=-(
| 1 |
| 2 |
| 5 |
| 6 |
| 7 |
| 12 |
=-(18+30-21)
=-27;
(5)原式=-2×
| 1 |
| 4 |
| 1 |
| 2 |
=-
| 1 |
| 2 |
| 1 |
| 2 |
=8;
(6)原式=-1+[1-0]÷7
=-1+
| 1 |
| 7 |
=-
| 6 |
| 7 |
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