123-111 = 345-123= 890-888= 900+123=

Question

123-111 = 345-123= 890-888= 900+123=

Answer 1

123-111=12
345-123=222
890-888=2
900+123=1023

Answer 2

1.123-111=12

2.345-123=222

3.890-888=2

4.900+123=1023