Perfect Cubes and Cube Roots

Perfect Squares, Square Roots, Perfect Cubes, & Cube Roots

Perfect Squares

1-1 2-4 3-9 4- 16 5-25 6-36 7-49 8-64 9-81 10-100 11-121 12-144 13-169 14-196 15-225 16-256 17-289 18-324 19-361 20-400

The 1st 20 perfect squares

A perfect square is the square of an integer

​​ What is a perfect square

Fill in the Blanks

What is 9²

Fill in the Blanks

What is 13²

Fill in the Blanks

What is 20²

Fill in the Blanks

What is 18²

Fill in the Blanks

What is 16²

Square Roots

400-20 361-19 324-18 289-17 256-16 225-15 196-14 169-13 144-12 121-11 100-10 81-9 64-8 49-7 36-6 25-5 16-4 9-3 4-2

​The first 20 square roots

The opposite of squaring a number is finding the square root. Positive numbers have 2 square Roots. Negative numbers have 0 square roots. Every number has a Square Root.

​What is a Square Root

Fill in the Blanks

What is the square root of 225

Fill in the Blanks

What is the square root of 169

Fill in the Blanks

What is the square root of 361

Draw

Draw the radical sign

Perfect Cubes

1-1 2-8 3-27 4-64 5-125 6-216 7-343 8-512 9-792 10-1000 11-1331 12-1728 13-2197 14-2744 15-3375 16-4096 17-4913 18-5832 19-6859 20-8000

First 20 perfect cubes

A perfect cube is the cube an integer

​What is a perfect cube

Fill in the Blanks

What is 20³ (add a comma)

Fill in the Blanks

What is 18³ (add a comma)

Fill in the Blanks

What is 13³ (add a comma)

Fill in the Blanks

What is 9³

Cube Roots

8,000-20 6,859-19 5,382-18 4,913-17 4,096-16 3,375-15 2,744-14 2,197-13 1,728-12 1,331-11 1,000-10 729-9 512-8 343-7 216-6 125-5 64-4 27-3 16-2 1-1

​The first 20 cube Roots

A cube root is the opposite of cubing a number. All integers only have 1 cube root. ∛ is used to indicate cube root.

What is a cube root

Fill in the Blanks

∛4,913

Fill in the Blanks

∛343

Fill in the Blanks

∛125

Fill in the Blanks

∛2,744

​Summary

You cannot take the square root of a negative number; you can take the cube root of a negative number.