Question

 b+20 14+b 80-b b-9 при b=70 b=23 b=11

Answer 1

1) b+20
70+20=90
23+20=43
11+20=31
2)14+b
14+70=84
14+23=37
14+11=25
3)80-b
80-70=10
80-23=57
80-11=69
4) b-9
70-9=61
23-9=14
11-9=2