Составь по таблице уравнения и реши их.
17 + x = 20
x = 3
17 + 3 = 20
9 + x = 49
x = 40
9 + 40 = 49
x + 7 = 37
x = 30
30 + 7 = 37
60 + x = 100
x = 40
60 + 40 = 100
x + 48 = 48
x = 0
0 + 48 = 48
94 + x = 94
x = 0
94 + 0 = 94