Brain Pop Square Roots

Which of the following numbers is a factor of 16?

• 3
• 5
• 8
• 9

What is unique about a number that's a perfect square?

• It has two factors which are identical.
• It has more than four different factors.
• Its only factors are 1 and itself.
• It can be evenly divided by 2.

A principal square root is always:

• A negative integer
• A positive integer
• A positive fraction
• A negative fraction

What is the principal square root of 16?

• -4
• -1/4
• 1/4
• 4

What are the two square roots of 36?

• 18 and 2
• 12 and 3
• 1296 and -1296
• 6 and -6

A square has an area of 49 square centimeters. What is the length of one side?

• 5 cm
• 7 cm
• 8 cm
• 2401 cm

What is the area of a square where one side is 90 cm long?

• 8100 square cm
• 9000 square cm
• 810 square cm
• 900 square cm

Which of the following numbers is NOT a perfect square?

• 25
• 36
• 110
• 121

When might you have to use a calculator to figure out a square root? Chose the 1 best answer?

• When the number is over 100
• When the number is not a perfect square.
• When the number is less than 10.
• When the number is odd instead of even.

You can find the square of any number by:

• Dividing it by 2
• Adding it to itself
• Multiplying it by itself
• Doubling it, then subtracting the original number