60:4+81:3 76:2-91:13 720:10+640:8

Question

60:4+81:3
76:2-91:13
720:10+640:8

Answer 1

60:4+81:3=15+17=32
76:2-91:13=38-7=31
720:10+640:8=72+80=152

Comments

не правилно

Answer 2

1)=42
2)=31
4)=152
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