Which statement correctly explains how to find the value of $\sqrt{100}$?

Find the number that, when multiplied by itself, equals 100.

Find the number that, when added to itself, equals 100.

Calculating and Comparing Square Roots Practice — Grade 9 math

1. If a square has an area of 81 square inches, what is the length of one of its sides in inches? ___
2. Which statement correctly explains how to find the value of $\sqrt{100}$?
- A. Divide 100 by 2, which is 50.
- B. Find the number that, when multiplied by itself, equals 100.
- C. Find the number that, when added to itself, equals 100.
- D. Divide 100 by 4, which is 25.
3. What is the best integer estimate for $\sqrt{65}$? ___
4. A student incorrectly states that $\sqrt{36} = 18$. What is the most likely error in their thinking?
- A. They multiplied 36 by 2.
- B. They squared the number 36.
- C. They divided 36 by 2.
- D. They subtracted 18 from 36.
5. Solve for the value of $k$ in the equation $k = \sqrt{49}$. $k$ = ___
6. Which of the following numbers is a perfect square?
- A. 150
- B. 169
- C. 180
- D. 200
7. A square is formed using a number of tiles. If the number of tiles is the result of squaring 14, how many tiles are there in total? ___
8. A square-shaped patio has an area of 144 square feet. What is the length of one of its sides in feet? ___
9. Which of the following numbers is NOT a perfect square?
- A. 49
- B. 64
- C. 90
- D. 100
10. The number 225 is a perfect square. What integer, when multiplied by itself, equals 225? ___