题目内容
计算:
(1)(-3)+(-4)-(+11)-(-9);
(2)-5
-[-1.5-(4.5-4
)];
(3)(
-
-
)×(-60);
(4)(-81)÷
×
÷(-16);
(5)-14÷(-52)×(-
)+|0.8-1|;
(6)
×(-23)÷
-(-8)÷[(-0.2)2-(-0.96) ] .
(1)(-3)+(-4)-(+11)-(-9);
(2)-5
| 3 |
| 4 |
| 3 |
| 4 |
(3)(
| 2 |
| 3 |
| 1 |
| 12 |
| 1 |
| 15 |
(4)(-81)÷
| 9 |
| 4 |
| 4 |
| 9 |
(5)-14÷(-52)×(-
| 5 |
| 3 |
(6)
| 1 |
| 4 |
| 4 |
| 5 |
(1)(-3)+(-4)-(+11)-(-9)=-3-4-11+9=-18+9=-9;
(2)-5
-[-1.5-(4.5-4
)]=-5
-(-1.5-4.5+4
)=-5
+1.5+4.5-4
=-
+6=-
;
(3)(
-
-
)×(-60)=
×(-60)-
×(-60)-
×(-60)=-40+5+4=-31;
(4)(-81)÷
×
÷(-16)=81×
×
×
=1;
(5)-14÷(-52)×(-
)+|0.8-1|=-1×(-
)×(-
)+0.2=-
+
=
;
(6)
×(-23)÷
-(-8)÷[(-0.2)2-(-0.96) ] =
×(-8)×(
)-(-8)÷(0.04+0.96)=-2.25-(-8)=5.75.
(2)-5
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 3 |
| 4 |
| 39 |
| 4 |
| 15 |
| 4 |
(3)(
| 2 |
| 3 |
| 1 |
| 12 |
| 1 |
| 15 |
| 2 |
| 3 |
| 1 |
| 12 |
| 1 |
| 15 |
(4)(-81)÷
| 9 |
| 4 |
| 4 |
| 9 |
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 16 |
(5)-14÷(-52)×(-
| 5 |
| 3 |
| 1 |
| 25 |
| 5 |
| 3 |
| 1 |
| 15 |
| 1 |
| 5 |
| 2 |
| 15 |
(6)
| 1 |
| 4 |
| 4 |
| 5 |
| 1 |
| 4 |
| 5 |
| 4 |
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