Simplify square roots with letters or a fraction inside
Grade 9 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.
Ari's robot screen shows √(x^16) for x > 0 (the robot only counts in pairs). It simplifies to x to a whole power. What is that power?
Bo's puzzle card shows √(x^36) for x > 0. It simplifies to x to a whole power. What is that power?
In math club, Esme writes √(x^64) for x > 0 on the board. It simplifies to x to a whole power. What is that power?
Using the card, why is √(x⁶) equal to x³, Jun?
- Three pairs give three x's out
- x⁶ has three factors
- 6 ÷ 3 = 3
Using the card, why does √y stay in y²√y, Kira?
Use the picture in question 4.
- y² is too big to pull
- y is too small to come out
- One y has no partner
Milo's pizza slice covers 25/49 of a square box lid. What is √(25/49)?
- 5/7
- 25/7
- 5/49
Noah simplifies √(1/36) on a quiz card. Which is right?
- 6
- 1/18
- 1/6
Pia simplifies √(x²/9) for x > 0. Which is right?
- x²/3
- x/9
- x/3
In Ren's strip, a pair of x's sits under a square root. What comes out?
- Two x's
- One x
- x²
On Zee's sheet, letters stand for positive numbers. What is √(x²)?
- x/2
- 2x
- x

