Expressions

Distribution

100

7 ( 4r + 8)

28r + 56

200

-3 (5g + 6)

-15g - 18

300

1/2 (35m + 17)

17.5m + 8.5

400

-12 (8h - 4)

-96h + 48

500

2/3 (9w + 12)

6w + 8

CLT

100

3m - 8m

-5m

200

-11j - 12j

-23j

300

108r - 110r + 2r

0

400

3.5v + 5.5v - v

8v

500

25k - 22k + 28k - 5s - 5s

31k - 10s

Vocab

100

In algebra, letters are called _________.

variables

200

How many terms are in this expression?  13a - 26b + 44c - 88

4

300

What is the coefficient of the third term?   -96h + 7n + 4p

4

400

Give 2 examples of a variable.

ANY 2 letters you choose!  My examples are 6 and 7!!

500

How many variables are in this expression?  a + d - f + g + h

5

Translate

100

"A number decreased by seven"

n - 7 (use any letter you want, I am just choosing n for "number")

200

"Double a number minus ten"

2n + 10  

300

"Fifteen more than half a number"

15 + n/2  or 15 +  1/2n

400

"The product of a number and negative twelve"

-12n  or n x -12

500

"A number cubed decreased by eight"

n³ - 8

Evaluate

100

Find ab if a = 9 and b= -3

-27

200

Find d / -5 if d = 225

-45

300

7w + 3y if w = 4 and y = -2

22

400

f² - g²  if f = 12 and g = 8

120

500

-10p - (-6j)  if p = -3 and j = 7

72