Question

Помогите, пожалуйста!

Answer 1

1) -9.4+6.8=-2.6
14.3-8.7= 5.6
-2.8-7.6=-10.4
4.7-4.7=0
3.8-4.4= -0.6
-16.7-5.5= -22.2
-2.2+15.1= 12.9

2)9+х=5
х=-4
-33-у=-19
-у=-19+33
у=-14

3)-42+75+(-14)+(-26)+56=131-82=49
12+(-20)-(-11)-(-6)-10=29-30=-1
3 5/12-(-1 1/3)+(-4 3/8)=(3×10+1×8-4×9)/24=(30+8-36)/24= 2/24=1/12

4)-13.24+b+4.9+8.24+(-4.9)=-5+3 4/9=(-45+31)/9=-14/9

5)1.разность- -12.14-(-5.34)=-6.8
сумма- -12.14+(-5.34)=-17.48
2. -176+(-35)=-211
-19+21=2