Evaluating Expressions

Front

Variable

Back

A number such as x that represents an unspecified number

Front

What is 4x if x=5?

Back

20

Front

What is 3x+(5+y) if x=2 and y=7?

Back

18

Front

What is 6+x when x=53?

Back

59

Front

X+y+z+a-c when x=11 y=3 z=4 a=14 and c=10

Back

22

Front

Dana is doing a craft project using yarn and craft sticks. She has 5 green yarn pieces and 7 blue yarn pieces. She has 3 times as many craft sticks as yarn pieces. Which expression can you use to find the number of craft sticks Dana has to do? Options:

5 + ( 7 x 3)

,

(5 + 7) x 3

,

(5 + 7) + 3

,

5 x ( 7 x 3)

Back

(5 + 7) x 3

Answer explanation

Front

Find the volume

Back

144 cubic inches

Front

Oliver and Charlie are eating from the same box of cereal. Oliver eats 2/12 of the box and Charlie eats 2/6 of the box. How much of the cereal do they eat together? Simplify the fraction.

Back

1/2 of the box of cereal

Front

Simplify the expression x² - xy if x = 8 and y = -3

Back

88

Front

Simplify the expression 5m + 9n if m = -7 and n = 4.

Back

1