1+1= 2+2= 2+1= 1+3= Помагите!!!

Question

1+1=
2+2=
2+1=
1+3=
Помагите!!!

Answer 1

1+1=2
2+2=4
2+1=3
1+3=4

Comments

1+=2

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1+1=2

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2+2=4

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2+1=3

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1+3=4

Answer 2

1+1=2
2+2=4
2+1=3
1+3=5