simple: 70 X 22/10 = cancel 0 of 10 with the 0 of 70 so remaining figure is 7 X 22=154 answer.
70/2.2 = 700/22 = 31.818181818181818181818181... = 31 + 18/22
493.7429
0.064
128
70
14
630 / 9 = 70
8.75
It is: 280/4 = 70
The answer is 70, as if you work backwards by multiplying 10 and 7, you will get 70.
3.0571
70 divided by 7 = 10
162