Question

34+58-(43+19)=
53-(100-62)-37=

Answer 1

30......................
-22..................

Answer 2

34+58-(43+19)=30
1)43+19=62
2)34+58=92
3)92-62=30

53-(100-62)-37=
1)100-62=38
2)53-38=15
3)15-37= - 22