Question

Thao says she can find the answer to 8*90 by halving the 8 and doubling the 90 again and again until she gets down to 1*720 is she correct

Answer 1

yes

Explanation:

8 × 90 = 720

4 × 180 (half of 8, double of 90) = 720

2 × 360 (half of 4, double of 180) = 720

1 × 720 = 720