6th Grade Intro to Variables

Combining Like Terms

100

4x + 2 + 2x + 1

6x + 3

200

2a + 3b + a + 4

3a + 3b + 4

300

3s + 6r + s - 3r

4s + 3r

400

7c + 4c² + 10d - c - 8d

6c + 4c² + 2d

500

5g + g + 4h - h - 3h

6g

Distributive Property

100

4(a + b)

4a + 4b

200

5(2x - y)

10x - 5y

300

5(5g - 10h)

25g - 50h

400

2(a + 3b - 4c)

2a + 6b - 8c

500

1/2(2f - 10g)

f - 5g

One Step Equation Adding and Subtracting

100

x + 2 = 4

x = 2

200

g - 7 = 9

g = 16

300

h + 100 = 150

h = 50

400

p - 100 = 75

p = 175

500

r + 1/2 = 3

r = 2 1/2

One Step EquationMultiplying and Dividing

100

2x = 4

x = 2

200

y ÷ 5 = 10

y = 50

300

10d = 120

d = 12

400

150 ÷ t = 10

t = 15

500

1/4d = 4

d = 16

Vocabulary

100

A letter that represents a number that we do not know or that can change.

What is a variable?

200

A number on it's own with no variable.

What is a constant?

300

The number multiplied by a variable.

What is a coefficient?

400

A coefficient and a variable multiplied together or a constant.

What is a term?

500

The mathematical process represented by PEMDAS.

Also include what each letter in PEMDAS stands for.

What is the order of operations

P - Parenthesis

E - Exponents

M - Multiply

D - Divide

A - Add

S - Subtract