问题 解答题
计算:
(1)4-(-4)+(-3);
(2)-7
1
3
+5+2
1
3

(3)-14-[3-(-2)3];
(4)(-
1
3
)×3÷(-3)×(-
1
3
)

(5)-2×(-2
1
6
)+(-7)×2
1
6
+5×
13
6

(6)4
1
2
×[-32×(-
1
3
)2-0.8]÷(-2
1
4
)
答案

(1)4-(-4)+(-3)

=4+4-3

=5;

(2)-7

1
3
+5+2
1
3

=-7

1
3
+2
1
3
+5

=-5+5

=0;

(3)-14-[3-(-2)3]

=-1-[3+8]

=-1-11

=-12;

(4)(-

1
3
)×3÷(-3)×(-
1
3
)

=-(

1
3
×
1
3
)×(3÷3)

=-

1
9
×1

=-

1
9

(5)-2×(-2

1
6
)+(-7)×2
1
6
+5×
13
6

=(2-7+5)×2

1
6

=0×2

1
6

=0;

(6)4

1
2
×[-32×(-
1
3
)2-0.8]÷(-2
1
4
)

=4

1
2
×[-9×
1
9
-0.8]×(-
4
9

=4

1
2
×[-1-0.8]×(-
4
9

=

9
2
×(-
9
5
)×(-
4
9

=

18
5

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