Algebraic Thinking

Vocabulary

100

What is a coefficient?

the number in front of a variable

200

What does an expression consist of?

unknown variables, numbers, and operations 

300

What is a variable?

an unknown number 

400

How many terms are in this expression? 

3-7d-8-9d 

4 

500

Which is the CONSTANT in this expression? 

5k+2-5x

2

Combining Like Terms

100

Can I combine the following terms? 

5x+2

no

200

In order to combine like terms they need to...

same/identical parts

300

Combine like terms. 

5k+3+3k-3

8k

400

Combine like terms.

13j+3j+5-3j+3

13j+8

500

Combine like terms. 

7(5k+4)+5

35k+33

Distributive Property

100

When using distributive property what operation is it? 

multiplication

200

Use distributive property to find an equivalent expression.

3(5y+8)

15y+24

300

Use distributive property to find an equivalent expression.

7(5k-2)

35k-14

400

Use distributive property to find an equivalent expression.

9(4+2r)

36+18r

500

Use distributive property to find an equivalent expression.

3(5j+2-3k)

15j+6-9k

PEMDAS

100

What is PEMDAS?

The order to solve math problems

200

Solve this problem. 

4(5)+4/4

5

300

If you have multiplication and division, how do you solve the problem?

left to right 

400

Solve this problem.

6(3)+3(2)-7

17

500

Solve this problem. 

20/2(5)-20+5

35