Room 9s Algebra Practice!

Factors & Multiples

100

Factors of 8

1, 2, 4, 8

200

List the next 3 multiples of 4

4, 8, _ , _ , _

12, 16, 20

300

List the next 3 multiples of 9

9, 18, 27, 36, _ , _ , _

45, 54, 63

400

Factors of 26

1, 2, 13, 26

500

Factors of 36

1, 2, 3, 4, 6, 9, 12, 18, 36

Prime Numbers

100

This is the only even prime number.

2

200

This is the next prime number after 19.

23

300

This number used to be a prime number, but not anymore.

1

400

The highest prime number (under 100).

97

500

This is the smallest 2 digit prime number.

11

Like Terms

100

7x + 6

Not like terms!

200

3x - 2x

3x and 2x are like terms

300

3x + 2y - x + y

3x and x are like terms

So are 2y and y!

400

3ab + 2ab²

NOT like terms! The exponent needs to be the same.

500

3a - 2ab + 4c - 5ab² + 4bc

None of them are like terms!

Simplifying Expressions

100

Simplify:

5x - 3x

2x

200

Simplify:

2a + 4a + 6

6a + 6

300

Simplify:

3a + 2b - a

2a + 2b

400

Simplify:

2g + 3 - g + 5

g + 8

500

Simplify:

6p − 4q + 5 − 3p + q − 2

3p - 3q + 3

Substitution

100

If x = 3, then what is: 

2x + 5

2 x 3 + 5

= 11

200

If x = 4, then what is:

3x - 2x

3 x 4 - 2 x 4

= 12 - 8

= 4

300

If x = 5 and y = 6, what is:

2x + 5x - y

2 x 5 + 5 x 5 - 6

= 10 + 25 - 6

= 35 - 6

= 29

400

If x = 5 and y = 7, what is:

2x + y²

2 x 5 + 7 x 7

= 10 + 49

= 59

500

If a = 4, b = 3, and c = 2, what is:

3a − 2b + c³

(3 x 4) - (2 x 3) + (2 x 2 x 2)

= 12 - 6 + 8

= 14