Question

Expand the following numbers using exponents.

1256.249

Answer 1

1256.249 = 1 × 1000 + 2 × 100 + 5 × 10 + 6 × 1 + `2/10 + 4/100 + 9/1000`

               = 1 × 10³ + 2 × 10² + 5 × 10¹ + 6 × 10° + 2 × 10^-1 + 4 × 10^-2 + 9 × 10^-3.