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初一有理数加法题10道

23+(-17)+6+(-22) -2+3+1+(-3)+2+(-4) 23+(-73) (-84)+(-49) 7+(-2.04) 4.23+(-7.57) 7/3)+(-7/6) 9/4+(-3/2) 3.75+(2.25)+5/4 -3.75+(+5/4)+(-1.5) (-17/4)+(-10/3)+(+13/3)+(11/3) (-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) (+1.3)-(+17/7) (-2)-(+2/3) |(-7.2)-(-6.3)

一、填空题(14*2分=28分)1. 某数的相反数是5,那么这个数是 ; ,则 .2. ( )2=16,(- )3= .3. + = . 4. 计算:-2-32=________; = .5.若0

有理数的加减法: 〈-8〉+10+2+〔-1〕=3, 5+〔-6〕+3+9+〔-4〕+〔-7〕=0, 〔-0.8〕+1.2+〔-0.7〕+〔-2.1〕+0.8+3.5=1.9, 1/2+〔-2/3〕+4/5+〔-1/2〕+〔-1/3〕=-1/5, -4.2+5.7-8.4+10=3.1, -1/4+5/6+2/3-1/2=3/4,

7.2-(-5)+83+(-0.7) (2)8+(-6.45)-42+91 (3)(-20)+(+3)-(-5)-7 (4)(-8)+10+2-57 (5)5.9+8.4-(-78)+(-3.8) (6)4.8-(-69)+6.5-(-77)(7)(-8)-61-(31)+(-2.9)(8)9.3+(-7.2)-(+3)+5.2(9)(-5)+13-(-5.8)-(-54)(10)(+13)-9.6+(-20)

1.(-8)-(-1)=(-8)+1=-7 2.45+(-30)=45-30=15 3.-1.5-(-11.5)=-1.5+11.5=10 4.-1/4-(-1/2)=-1/4+1/2=-1/4+2/4=1/4 5.15-[1-(20-4)]15-(1-16)=15-(-15)=15+15=30 6.-40-28-(-19)+(-24)=-40-28+19-24=-73 7.22.54+(-4.4)+(-12.54)+4.4=22.54-4.4-12.54+4.4=10

1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4.3/7 * 49/9 - 4/3 5.8/9 * 15/36 + 1/27 6.12* 5/6 2/9 *3 7.8* 5/4 + 1/4 8.6÷ 3/8 3/8 ÷6 9.4/7 * 5/9 + 3/7 * 5/9 10.5/

-3+-3=-66+7+-8+9+10=242+-5+-8+9=-25+-7-9-10=-213-4-8=-9我就给你这么多

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