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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