题目内容
计算
(1)(-3)+(-4)-(+11)-(-9)
(2)(-81)÷2
×(-
)÷(-16)
(3)8-23÷(-4)3-
(4)-32×2-3×(-2)2
(5)(
-
+
-
)×(-36)
(1)(-3)+(-4)-(+11)-(-9)
(2)(-81)÷2
| 1 |
| 4 |
| 4 |
| 9 |
(3)8-23÷(-4)3-
| 1 |
| 8 |
(4)-32×2-3×(-2)2
(5)(
| 1 |
| 2 |
| 5 |
| 9 |
| 5 |
| 6 |
| 7 |
| 12 |
(1)(-3)+(-4)-(+11)-(-9)
=-3-4-11+9
=-18+9
=-9;
(2)(-81)÷2
×(-
)÷(-16)
=-81×
×
×
=-1;
(3)8-23÷(-4)3-
=8+8÷64-
═8+
-
=8;
(4)-32×2-3×(-2)2
=-9×2-3×4
=-18-12
=-30;
(5)(
-
+
-
)×(-36)
=-18+20-30+21
=-48+41
=-7.
=-3-4-11+9
=-18+9
=-9;
(2)(-81)÷2
| 1 |
| 4 |
| 4 |
| 9 |
=-81×
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 16 |
=-1;
(3)8-23÷(-4)3-
| 1 |
| 8 |
=8+8÷64-
| 1 |
| 8 |
═8+
| 1 |
| 8 |
| 1 |
| 8 |
=8;
(4)-32×2-3×(-2)2
=-9×2-3×4
=-18-12
=-30;
(5)(
| 1 |
| 2 |
| 5 |
| 9 |
| 5 |
| 6 |
| 7 |
| 12 |
=-18+20-30+21
=-48+41
=-7.
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