题目内容

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
)
(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
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网