72:4=2* 17*4=34* 90-30=3* 100 -8=4*

Question

72:4=2*

17*4=34*

90-30=3*

100 -8=4*

Answer 1

72:4=2*9

17*4=34*2

90-30=3*20

100 -8=4*23

Answer 2

..............9

..............2

..............20

..............23