Question

(20-16+38)-23+(45-8)=

Answer 1

(20-16+38)-23+(45-8)=42-23+37=56

Answer 2

(20-16+38)-23+(45-8)=56
1)20-16=4
2)38+4=42
3)42-37=19
4)45-8=37
5)19+37=56