(-10)+(负二分之一) (+45)+(-91)+5+(-9) (-18.65)+(-6.15)+18.75+(6.15) (-36.35)+(-7.25)+26.35+(+7又4分之1)+10(+3分之1)+(负4分之3)
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 23:45:35
(-10)+(负二分之一) (+45)+(-91)+5+(-9) (-18.65)+(-6.15)+18.75+(6.15) (-36.35)+(-7.25)+26.35+(+7又4分之1)+10(+3分之1)+(负4分之3)
(-10)+(负二分之一) (+45)+(-91)+5+(-9)
(-18.65)+(-6.15)+18.75+(6.15)
(-36.35)+(-7.25)+26.35+(+7又4分之1)+10
(+3分之1)+(负4分之3)
(-10)+(负二分之一) (+45)+(-91)+5+(-9) (-18.65)+(-6.15)+18.75+(6.15) (-36.35)+(-7.25)+26.35+(+7又4分之1)+10(+3分之1)+(负4分之3)
自己动脑不好?
(-10)+(负二分之一)=-10.5
(+45)+(-91)+5+(-9)=-50
(-18.65)+(-6.15)+18.75+(6.15)=0.1
(-36.35)+(-7.25)+26.35+(+7又4分之1)+10=0
(+3分之1)+(负4分之3) =-12分之5
(-10)+(负二分之一)
=-10-1/2
=-(10+1/2)
=-10又2分之1
(+45)+(-91)+5+(-9)
=45-91+5-9
=(45+5)-(91+9)
=50-100
=-50
(-18.65)+(-6.15)+18.75+(6.15)
=-18.65-6.15+18.75+6....
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(-10)+(负二分之一)
=-10-1/2
=-(10+1/2)
=-10又2分之1
(+45)+(-91)+5+(-9)
=45-91+5-9
=(45+5)-(91+9)
=50-100
=-50
(-18.65)+(-6.15)+18.75+(6.15)
=-18.65-6.15+18.75+6.15
=(18.75-18.65)+(6.15-6.15)
=0.1+0
=0.1
(-36.35)+(-7.25)+26.35+(+7又4分之1)+10
=-36.35-7.25+26.35+7.25+10
=(26.35+10-36.35)+(7.25-7.25)
=0+0
=0
(+3分之1)+(负4分之3)
=1/3-3/4
=-(3/4-1/3)
=-9分之5
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