Question

найди неизвестное .:
?+50=75
28+?=64
?×4=36
?×9=63
8×?=64
7×?=49

Answer 1

1.25
2.36
3.9
4.7
5.8
6.7

Answer 2

1 75-50
2 64-28
3 36:4
4 63:9
5 64:8
6 49:7
1 25
2 36
3 9
4 7
5 8
6 7