Question

5 - 4 = 23.8 - 1 = 63.6 -16 = 329 - 9 = 783 - 9 = 63 - 81 = ?Explain the logic. Challenge for all masterminds!!

Answer 1

5×5=25

2×2=4

we take one 2

25-2=23

8×8=64

1×1=1

we take one 1

64-1=63

6×6=36

4×4=16

we take one 4

36-4=32

9×9=81

3×3=9

we take one 3

81-3=78

3×3=9

3×3=9

we take one 3

9-3=6

3×3=9

9×9=81

we take one 9

9-9=0