问题 解答题
计算:
(1)5-6-(-3)+(-4)-7
(2)(1-
1
6
+
3
4
)×(-48);
(3)9
16
17
×17

(4)-32+(|-2|×4-5)÷(-
1
3
答案

(1)原式=5-6+3-4-7

=8-17

=-9;

(2)原式=-1×48-

1
6
×(-48)+
3
4
×(-48)

=-48+8-36

=-40-36

=-76;

(3)原式=(10-

1
17
)×17

=10×17-

1
17
×17

=170-1

=169;

(4)原式=-9+(2×4-5)×(-3)

=-9+3×(-3)

=-9-9

=-18.

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