6th Grade Expressions Review

GCF and LCM

100

GCF of 3 and 6

3

200

LCM of 12 and 4

12

300

GCF of 36 and 63

9

400

GCF of 55 and 121

11

500

LCM of 24 and 72

72

Equivalent Expressions

100

2(x+1)

2x+2

200

4(x - 3)

4x - 12

300

2(6x - 12)

12x - 24

400

7(3x + 9)

21x + 63

500

4(3x + 5y - 8)

12x + 20y - 32

Writing Expressions

100

x more than 5

5+x 

x+5

200

3 fewer than y

y - 3

300

5 more than the product of 3 and a

3a + 5

or 

5 + 3a

400

12 less than the quotient of 25 and x

25/x - 12

500

5 times the sum of 6 and y

5(y+6)

Combining Like Terms

100

5x + 6x

11x

200

9y - 4y + 6a

5y + 6a

300

12x - 9x + 4x + 8 - 5

7x + 3

400

23y + 17x + 16 - 9x + 19y

41y + 8x + 16

500

2ab + 4a²b + 50a²b - ab

ab + 54a²b

Solving Expressions

100

Solve if a = 3

5a

15

200

Solve for x = 10

120/x

12

300

Solve for y = 4

3(y - 3)

3

400

Solve for x = 5

x + 6(8)

53

500

Solve for x = 11

x(14 - 4)

110