Question

50 X 40 = (5 x _ ) X
(4 x
-)
= 5 x
X 10 X 10
= 20 x

Answer 1

50 x 40= 2000

So for (5 x blank), Blank = 400

For (4x blank), Blank = 500

For (5 x blank x 10 x 10), Blank = 4 (Because 5 x 4 x 10 x 10 = 2000)

For (20 x blank), Blank = 100

I`m still sorry if this wasn`t solved correctly ;--;

Answer 2

50*40=(5)*(4−)=510*10=20