Question

Which number is equal to the following?

9 x 10^3

1. 93
2. 900
3. 9,000
4. 2700

Answer 1

3. 9000

9x10=90
90x10=900
900x10=9000

Answer 2

9,000

Explanation:

10^3 = 10 × 10 × 10

In the cases of 10, you can actually count the 0s

10^3 = 1000 (3 zeros)

Its a cool trick!

so multiplying by 9 would give 9000!