题目内容
计算:
(1)(-1
)-(+6
)+
;
(2)-|-5|+(-3)3÷(-22);
(3)-3
÷(-1
)×(-4
).
(1)(-1
| 3 |
| 4 |
| 1 |
| 3 |
| 10 |
| 3 |
(2)-|-5|+(-3)3÷(-22);
(3)-3
| 4 |
| 7 |
| 2 |
| 3 |
| 2 |
| 3 |
(1)原式=-
-
+
=-
-(
-
)=-
-
=-
-
=-4
;
(2)原式=-5+(-27)÷(-4)=-5+
=-1
;
(3)原式=-
×(-
)×(-
)=-10.
| 7 |
| 4 |
| 19 |
| 3 |
| 10 |
| 3 |
| 7 |
| 4 |
| 19 |
| 3 |
| 10 |
| 3 |
| 7 |
| 4 |
| 9 |
| 3 |
| 21 |
| 12 |
| 36 |
| 12 |
| 3 |
| 4 |
(2)原式=-5+(-27)÷(-4)=-5+
| 27 |
| 4 |
| 3 |
| 4 |
(3)原式=-
| 25 |
| 7 |
| 3 |
| 5 |
| 14 |
| 3 |
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