The Real Number System Task Card Review

What are the two square roots of 25?

• 5 and -5

• 5 and 0

• 25 and -25

• 5 and 25

What is the value of the expression √(9 + 16)?

• 3

• 5

• 7

• √25

What is -√169?

• -13

• 13

• 169

• -169

What is the value of the square root of (100 - 36)?

• 6

• 8

• 10

• 12

What are the two square roots of 144?

• 12 and -12

• 14 and -14

• 10 and -10

• 16 and -16

What are the two answers to √196?

• 14

• -14

• 7

• -7

What is the value of the expression √(12 x 3)?

• 6

• √36

• 2√9

• √(12 x 3)

What are the two answers to the following: √289

• 17

• -17

• 19

• -19

The square roots of 49 are -7 and 7?

• True

• False

What would be a good strategy to estimate the square roots of 8?

• Find the square root of 1 and add it to the square root of 2.

• Multiply 8 x 8.

• Think about the two perfect square numbers 8 lies between and find the square roots. The square root of 8 would fall between those square roots.

• Multiply the square roots of 2 by the square root of 3.