Question

1. (1.2 × 10³) + (8.3 × 10³)

Answer 1

Use PEMDAS
Start with the first set of parentheses
1.2 * 10^3 =1200
8.3 * 10^3 = 8300
Add the products of each set of parentheses
1200 + 8300 = 9500

Answer: 9500

Answer 2

9,500

Explanation:

first, remove the parentheses

1.2 x 10^3 + 8.3 x 10^3

Collect the like terms

take 1.2x10^3 + 8.3x10^3 and you will get 9.5 x 10^3

Evaluate the power of 10^3 = 1,000

then do 9.5x1000 = 9,500