谁能给我写12道初一加减乘除混合运算题要

如题所述

有理数混合运算20题
(1) (-9)-(-13)+(-20)+(-2)
(2) 3+13-(-7)/6
(3) (-2)-8-14-13
(4) (-7)×(-1)/7+8
(5) (-11)*4-(-18)/18
(6) 4+(-11)-1/(-3)
(7) (-17)-6-16/(-18)
(8) 5/7+(-1)-(-8)
(9) (-1)×(-1)+15+1
(10) 3-(-5)×3÷(-15)
(11) 6×(-14)-(-14)+(-13)
(12) (-15)×(-13)-(-17)-(-4)
(13) (-20)÷13÷(-7)+11
(14) 8+(-1)÷7+(-4)
(15) (-13)-(-9)×16×(-12)
(16) (-1)+4×19+(-2)
(17) (-17)×(-9)-20+(-6)
(18) (-5)/12-(-16)×(-15)
(19) (-3)-13×(-5)×13
(20) 5+(-7)+17-10
答案:
1 -18
2 103/6
3 -37
4 9
5 -43
6 -(20/3)
7 -(199/9)
8 54/7
9 17
10 2
11 -83
12 216
13 1021/91
14 27/7
15 -1741
16 73
17 127
18 -(2885/12)
19 842
20 5
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