Answer :

There can be multiple answers to this question.

20 × 1 = 20
10 × 2 = 20
5 × 4 = 20
there are many that equal 20 like
- 4 x 5 equals 20
- 2 x 10 equals 20
- 1 x 20 equals 20
- 5 x 4 equals 20 etc.

Other Questions