题目内容
计算:
(1)-41-29-(-20)×2+33
(2)(
+
-
)÷
.
(1)-41-29-(-20)×2+33
(2)(
3 |
4 |
5 |
6 |
1 |
12 |
1 |
24 |
(1)-41-29-(-20)×2+33
=-41-29+40+33
=-70+73
=3;
(2)(
+
-
)÷
=(
+
-
)×24
=
×24+
×24-
×24
=18+20-2
=36.
=-41-29+40+33
=-70+73
=3;
(2)(
3 |
4 |
5 |
6 |
1 |
12 |
1 |
24 |
=(
3 |
4 |
5 |
6 |
1 |
12 |
=
3 |
4 |
5 |
6 |
1 |
12 |
=18+20-2
=36.
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