问题标题:
七上数学加减乘除乘方计算题60道
问题描述:
七上数学加减乘除乘方计算题60道
邓华林回答:
(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
(21)(-10)-(-16)-13*(-16)
(22)(-14)+4-19-12
(23)5*13/14/(-10)
(24)3*1*17/(-10)
(25)6+(-12)+15-(-15)
(26)15/9/13+(-7)
(27)2/(-10)*1-(-8)
(28)11/(-19)+(-14)-5
(29)19-16+18/(-11)
(30)(-1)/19+(-5)+1
(31)(-5)+19/10*(-5)
(32)11/(-17)*(-13)*12
(33)(-8)+(-10)/8*17
(34)7-(-12)/(-1)+(-12)
(35)12+12-19+20
(36)(-13)*(-11)*20+(-4)
(37)17/(-2)-2*(-19)
(38)1-12*(-16)+(-9)
(39)13*(-14)-15/20
(40)(-15)*(-13)-6/(-9)答案:1-18
2103/6
3-37
49
5-43
6-(20/3)
7-(199/9)
854/7
917
102
11-83
12216
131021/91
1427/7
15-1741
1673
17127
18-(2885/12)
19842
205
21214
22-41
23-(13/28)
24-(51/10)
2524
26-(268/39)
2739/5
28-(372/19)
2915/11
30-(77/19)
31-(29/2)
321716/17
33-(117/4)
34-17
3525
362856
3759/2
38184
39-(731/4)
40587/3
江孝感回答:
貌似没有乘方的啊?
邓华林回答:
3+2^2×(-1/5)
解:原式=3+4×(-1/5)
=3-4/5
=11/5
18-6÷(-2)×(-1/3)
解:原式=18-(-3)×(-1/3)
=18-1
=17
(-3)^2×[-2/3+(-5/9)]
解:原式=9×(-11/9)
=-11
8+(-3)^2×(-2)
解:原式=8+9×(-2)
=8-18
=-10
100÷(-2)^2-(-2)÷(-2/3)
解:原式=100÷4-3
=25-3
=22
36×(1/2-1/3)^2
解:原式=36×(1/6)^2
=36×(1/36)
=1
12.7÷(-8/19)×0
解:原式=0
4×(-3)^2+6
解:原式=4×9+6
=36+6
=42
(-3/4)×(-8+2/3-1/3)
解:原式=(-3/4)×(-8+1/3)
=(-3/4)×(-23/3)
=23/4
(-2)^3-13÷(-1/2)
解:原式=(-8)-(-26)
=18
0-2^3÷(-4)^3-1/8
解:原式=0-8÷(-64)-1/8
=0+1/8-1/8
=0
(-2)^3×0.5-(-1.6)^2÷(-2)^2
解:原式=(-8)×(1/2)-(-8/5)^2÷4
=(-4)-(64/25)÷4
=(-4)-16/25
=-116/25
(-3/2)×[(-2/3)^2-2]
解:原式=(-3/2)×(4/9-2)
=(-3/2)×(-14/9)
=7/3
[(-3)^2-(-5)^2]÷(-2)
解:原式=(9-25)÷(-2)
=(-16)÷(-2)
=8
16÷(-2)^3-(-1/8)×(-4)
解:原式=16÷(-8)-1/2
=-2-1/2
=-5/2
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