Question

___ x 4 = 12
___ x 5 = 20
___ x 2 = 10

Answer 1

3 x 4 = 12

4 x 5 = 20

5 x 2 = 10

Explanation:

3 + 3 + 3 + 3 = 12

3 four times equals 12

This is the same for the others

4 + 4 + 4 + 4 + 4 = 20

Four 5 times equals 20

Answer 2

`3 * 4 = 12 \\ 4 * 5 = 20 \\ 5 * 2 = 10`

Explanation:

#1

Let the unknown number be x

`x * 4 = 12 \\ 4x = 12 \\ (4x)/(4) = (12)/(4) \\ x = 3`

#2

Let the unknown number be y

`y * 5 = 20 \\ 5y = 20 \\ (5y)/(5) = (20)/(5) \\ y = 4`

#3

Let the unknown number be z

`z * 2 = 10 \\ 2z = 10 \\ (2z)/(2) = (10)/(2) \\ z = 2`

Hope this helps you.

Let me know if you have any other questions:-):-)