UPDATED QUESTIONS AND CORRECT
ANSWERS
How do you solve for an unknown in an equation? - CORRECT ANSWER Apply the same
operation to both sides until the unknown is isolated.
How do you multiply fractions? - CORRECT ANSWER Multiply numerators together and
denominators together.
How do you divide fractions? - CORRECT ANSWER Multiply by the reciprocal of the divisor.
How do you add/subtract fractions? - CORRECT ANSWER Rewrite with a common
denominator, then add/subtract numerators.
What does percent mean? - CORRECT ANSWER Per hundred.
How do you convert a decimal to a percent? - CORRECT ANSWER Multiply by 100. (0.25 →
25%).
How do you convert a percent to a decimal? - CORRECT ANSWER Divide by 100. (75% →
0.75).
How do you find 10% of a number quickly? - CORRECT ANSWER Move the decimal one
place to the left.
Example: What is 25% of 200? - CORRECT ANSWER 200 × 0.25 = 50.
What is a ratio? - CORRECT ANSWER A comparison of two numbers (e.g., 2:3).
What is a rate? - CORRECT ANSWER A ratio with different units (e.g., miles/hour).