Question

7•8-(5•6-12)÷3-49÷(7•7)= ? решение по действиям

Answer 1

5*6=30
30-12=18
7*7=49
7*8=56
18/3=6
49/49=1
56-6=50
50-1=49

Answer 2

5*6-12=18
7*7=49

7*8=56
=7*8-(18)\3
=50
7*8-(18)\3(50)-49=1
7*8-(18)\3(50)-49*(49)=49