作业帮1.6-9= 2.(+4)-(-7)= 3.(-5)-(-8)= 4.0-(-5)= 5.(-2.5)-5.9= 6.1.9-(-0.6)=
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1.6-9= 2.(+4)-(-7)= 3.(-5)-(-8)= 4.0-(-5)= 5.(-2.5)-5.9= 6.1.9-(-0.6)=
1.6-9= 2.(+4)-(-7)= 3.(-5)-(-8)= 4.0-(-5)= 5.(-2.5)-5.9= 6.1.9-(-0.6)=
1.6-9= 2.(+4)-(-7)= 3.(-5)-(-8)= 4.0-(-5)= 5.(-2.5)-5.9= 6.1.9-(-0.6)=
-3
11
5
-8.4
2.5