Question

Exerciții

x+13=42|-13

x+52=100|-52

x-14=89|+14

x-23=49|+23

x•9=81|:9

x•9=234|:9

x•4=12|:4

x:5=55|•5

x:14=3|•14

x•11=121|:11

x+335=749|-335

x-123=589|+123

x•12=1440|:12

x:15=21|•15

la fiecare trebuie sa zici cat e x.
exemplu
x+3=10|-3
x=7





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Answer 1

Răspuns:

42-13=29

100-52=48

89+14=103

49+23=72

81÷9=9

234÷9=26

12÷4=3

55×5=275

3×14=42

21÷11=11

749-335=414

589+123=712

1440÷12=120

21×15=315