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Simplifying Expressions

100

Simplify the following:

2a+4a=

6a

200

Simplify:

3ab+2ab+6b

5ab+6b

300

Simplify:

4y x 8y + 9

32y² + 9

400

Simplify:

3m x 5m x 2k x k

30m²k²

500

Simplify:

(48c^2d)/(12cd^2)

(4c)/d

Simplifying Expressions

100

Simplify:

16g-9g

7g

200

23b^2-4b^2+6a

19b^2+6a

300

Simplify: 

(40w)/5

8w

400

Simplify:

18a x 2a x cd

36a²cd

500

Simplify:

(75y^3z^2)/(15y^3)

5z^2

Substitution

100

Evaluate when k=10:

4+k=

14

200

Evaluate when a = 4:

3a+6=

18

300

Evaluate when f = 6:

f^2+2f

48

400

Evaluate when y = 8 and z = 2:

4yz+18+z^2

86

500

Evaluate when d = 2 and e = 5:

16d+5e+ed^2

77

Creating Expressions

100

Write an expression for the following:

A number, n, increased by 7

n+7

200

Write an expression for the following:

Three times a number, n, decreased by 4

3n-4

300

Write an expression for the following:

A taxi charges a flat fee of $4 plus $3 for every kilometer travelled (k).

3k+4

400

Sam is saving money. Each week he saves $20 plus an extra amount equal to half the number of hours he worked that week (h). Write an expression for how much he saves in one week?

20+h/2

500

A concert venue charges $15 for admission plus $8 for each friend you bring. Write an expression to represent the cost of bringing f friends. 

8f+15

Mixed

100

Evaluate when y = 8:

2y-5

11

200

Simplify the following expression:

3a+b-a+5b

2a+6b

300

Ava has m stickers. Ben has 5 more than twice the number of stickers Ava has. Write an expression for the number of stickers Ben has. 

2m+5

400

Simplify:

7x+3y-2x+5-y+4x-8

9x+2y-3

500

A rectangle has a length of  a+3 cm and a width of  a cm. What is its perimeter when  a=5 ?

26cm