Estimating Square Roots to the Nearest Integer

What is an integer?

• A number that is always positive

• A number with a decimal part

• A number with a fraction part

• A whole number without fraction or decimal parts

Which of the following is a perfect square?

• 20

• 35

• 25

• 30

What is the square root of 16?

• 4

• 3

• 5

• 2

If the square root of 9 is 3, what is 3 squared?

• 9

• 12

• 15

• 6

Which of the following is the square root of 49?

• 8

• 7

• 6

• 9

What is the square root of 100?

• 8

• 9

• 10

• 11

How would you estimate the square root of 26?

• Between 6 and 7

• Between 7 and 8

• Between 5 and 6

• Between 4 and 5

Which perfect squares are closest to 78?

• 100 and 121

• 81 and 100

• 64 and 81

• 49 and 64

What is the approximate square root of 78 to the nearest integer?

• 9

• 10

• 7

• 8

What makes a number irrational?

• It is a whole number

• It has a repeating decimal

• It has a non-repeating, non-terminating decimal

• It has a terminating decimal