计算:(1)-20+(-15)-(-14)-18; (2)(-20)×(-6)-(-48)÷8;(3)-216×5-216×(-4)+136×(-8); (4)...

2023-07-11 01:49发布

这道初中数学的题目是:
计算:
(1)-20+(-15)-(-14)-18;  (2)(-20)×(-6)-(-48)÷8;
(3)-2
1
6
×5-2
1
6
×(-4)+
13
6
×(-8)
; (4)-16÷(-2)3-(-
1
8
)×(-4)
1条回答
白兔先生
2023-07-11 01:56
这道初中数学题的正确答案为:
(1)-20+(-15)-(-14)-18
=-20-15+14-18
=-39,

(2)(-20)×(-6)-(-48)÷8
=120+6
=126,

(3)-2
1
6
×5-2
1
6
×(-4)+
13
6
×(-8)

=-2
1
6
×(5-4+8)
=-
13
6
×9
=-
39
2


(4)-16÷(-2)3-(-
1
8
)×(-4)

=-16÷(-8)-
1
2

=2-
1
2

=1
1
2
解题思路 16

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