Question

Which two known facts can you use to find 3 × 6?

A. 2 × 2 = 4

B. 2 × 6 = 12

C. 4 × 1 = 4

D. 2 × 4 = 8

E. 1 × 6 = 6

Answer 1

Explanation:

D. 2 × 4 = 8 and E. 1 × 6 = 6 can be used to find 3 × 6.

You can use the fact that 3 × 6 = (2+1)×6 = 2×6 + 1×6 = 12 + 6 = 18.