✨♥️Square Root & Perfect Squares♥️✨

Do you know the difference between Square Root and a Perfect Square?

(it's fine if you don't know)

• No =.=!

• Yes ↖(^ω^)↗

• Kinda ⊙△⊙

• Not really (??_??)?

Answer explanation

Square Root - A number times itself will produce a given number - 8 x 8 = 64

Perfect Square - A number whose square root is a whole number, not a decimal - Perfect Square = 16, 4 x 4

Not a Perfect square - 8, 2.82842712 x 2.82842712 = 7.99999997, rounded is 8

Tags

CCSS.8.NS.A.1

What is Square Root?

• Finding the area of a square but fancier✨

• A number multiplied by itself to get another number

Tags

CCSS.8.EE.A.2

Square Root is a number __________ by itself

Tags

CCSS.8.EE.A.2

All numbers are perfect squares.

True or False.

• True

• False

Answer explanation

From 1-12, the perfect square numbers are:

1 x 1 = 1✨

2 x 2 = 4✨

3 x 3 = 9✨

4 x 4 = 16✨

5 x 5 = 25✨

6 x 6 = 36✨

7 x 7 = 49✨

8 x 8 = 64✨

9 x 9 = 81✨

10 x 10 = 100✨

11 x 11 = 121✨

12 x 12 = 144✨

Tags

CCSS.8.EE.A.2

Which one of these isn't a perfect square?

• ✨9✨

• ✨5✨

• ✨25✨

• ✨36✨

Answer explanation

The square root of 9 is 3

The square root of 25 is 5

The square root of 36 is 6

The square root of 5 is something like 2.23606798

See the difference? All of the wrong answers are whole numbers. The right answer isn't, therefore, it is not a perfect square.

Tags

CCSS.8.EE.A.2

What is the square root of 36?

• 6

• 8

• 4

• 9

Tags

CCSS.8.EE.A.2

What is the square root of 144?

(hint: multiply all these numbers by themselves, 12x12, 11x11, 10x10, and 9x9)

• 12

• 11

• 10

• 9

Tags

CCSS.8.EE.A.2

Is 81 a perfect square or not? Explain why

Tags

CCSS.8.EE.A.2