Question

Which number is the largest?
1.2 × 104, 4.5 × 10−3, 3.8 × 103, 7.5 × 103

Answer 1

1.2 x 10^4 = 12,000

4.5 x 10^-3 = 4.5 x 1/(10^3) = 4.5/1000 = 0.0045

3.8 x 10^3 = 3,000

7.5 x 10^3 = 7,000

largest is 1.2 x 10^4

Explanation:

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