Multiple choice Represent 1.5 × 10-4 in ordinary form. 0.00015 0.0015 0.015 0.15 Reveal answer Fill a bubble to check yourself A Correct answer Explanation 1.5 × 10^-4 means 1.5 divided by 10^4 = 1.5 ÷ 10000 = 0.00015. The negative exponent tells you to move the decimal point 4 places to the left.