Multiple choice Represent 5600 in standard index form. 5.6 × 102 5.6 × 103 5.6 × 104 5.6 × 105 Reveal answer Fill a bubble to check yourself B Correct answer Explanation To write 5600 in standard index form, move the decimal point so there's one non-zero digit before it. 5600 = 5.6 × 1000 = 5.6 × 10^3. You moved the decimal 3 places left, so the exponent is 3.