6th grade Expressions and Equations

Writing Expressions

100

Fern has 7 red pens and b blue pens. How many pens does Fern have?

What is "7 + b" pens?

200

Sarah had 15 quarters. She used q quarters in the vending machine. How many quarters does Sarah have left?

What is "15 - q" quarters?

300

Macy had d dollars. She gave half of her dollars to charity. How many dollars did she give to charity.

What is "1/2 d" dollars?

400

A candy company divided c bags of candy into 12 boxes. How many bags of candy are in each box?

What is "c/12" bags?

500

Five times the sum of 4 and t

What is "5(4 + t)"?

Writing Equations

100

Roger bought some used CDs at a garage sale. He gave 9 CDs to his dad and kept 12 of them for himself. How many CDs did Roger buy at the garage sale?

What is "c - 9 = 12" or "c - 12 = 9" or "9 + 12 = c" or 12 + 9 = c"?

200

Felicia and Sam sold 103 muffins at the bake sale. Felicia sold 25 muffins. How many muffins did Sam sell at the bake sale?

What is "45 + s = 103" or "s + 45 = 103" or "103 - 45 = s" or 103 - s = 45"?

300

Francine walked 44 miles last month on her days off. She walked 4 miles each time. How many days did Francine have off?

What is "4d = 44" or "44/4 = d" or 44/d = 4"?

400

Alison took 51 candy bars and split them into groups to give out for Halloween. She put 3 bars in each group. How many bunches did Alison make?

What is "51/3 = b" or "51/b = 3" or "3b = 51"

500

The sum of 13 and the quotient of 6 and x is equal to 15.

What is "13 + 6/x = 15"?

Solving Equations

100

18 + x = 36

What is "x = 18"?

200

x - 45 = 88

What is "x = 43"?

300

x/3 = 10

What is "x = 30"?

400

15 * x = 75

What is "x = 5"?

500

x/7 - 4 = 3

What is "x = 1"?

Distributive Property

100

Solve:

4(3-1)

8

200

Simplify:

5(x+2)

5x+10

300

Simplify the expression:

2(3t+9)

6t+18

400

Simplify the expression:

7(1/2 + r)

3.5+7r

500

Solve the equation by using the distributive property:

4(8+x)=120

x=22

Vocabulary

100

A(n) _________________ is an unknown part of an equation, represented by a letter.

What is a variable?

200

Each group of variables and numbers, separated by addition and subtraction signs, is called a(n) _____________ of the equation.

What is a term?

300

Two expressions set equal to each other creates a(n) _______________.

What is an equation?

400

A(n) ________________ is a combination of numbers, variables, and symbols that illustrate a mathematical relationship

What is an expression?

500

the answer to a subtraction problem is a(n) ______________.

What is the difference?