enVision Topic 3 Review

Vocabulary

100

This type of math problem has no equal sign. 

Expression 

200

This type of math problem has an equal sign

Equation

300

What is the acronym for order of operations? 

PEMDAS

400

Another word for the letters used in expressions and equations 

Variable 

500

What type of math where numbers and symbols are used to formulate expressions and equations. 

Algebra

Pick the Expression

100

Large blocks are sold in boxes of 15. Select the expressions that can represent the total number of blocks in b boxes of large blocks.

15b 

b/15

15 - b

b + 15 

15 x b

15b

15 x b

200

The same digits are used for the expression 5³ and 3⁵. Select the expression that compares the values.

5 x 3 = 3 x 5

5x5x5 < 3x3x3x3x3

3x3x3 < 5x5x5x5x5

5x5x5 < 3x3x3x3x3

300

Select all the expressions that are equivalent to 24c-8.

6c + 8 + 6c + 8

23c + 16 + c - 24

8(3c - 1)

12(12c - 2)

12c + 2³ - 14 + 12c

23c + 16 + c - 24

8(3c - 1)

12c + 2³ - 14 + 12c 

400

Jaden earns $8.00 per window washed and $8.00 per yard clean up. Let w be the number of windows washed and let y be the number of yards cleaned up. Select all the expressions that could represent the total earned, E in dollars, by Jaden.

E= 8 (w + y)

E=8w + y

E= 8 + wy

E = w + 8y

E= 8w + 8y

E= 8 (w + y)

E= 8w + 8y

500

Trey is picking vegetables at a farm. The fees are $7 for entry to the farm, $3.50 per pound of carrots, and $3 per pound of beans that he picks to take home. Let c be the number of pounds of carrots and b be the number of pounds of beans Trey picked. Which of the following expressions could represent how much Trey pays?

7 + 3.5b + 3c

3.5c + 3b + 7

(3.5 + 3) (b + c) + 7

7(3.5c + 3b)

3.5c + 3b + 7

Simplify Expressions

100

Simplify:

3(x+2)

3x + 6

200

4 (m + 9)

4m+36

300

20(20+2x)

400+40x

400

Evaluate 7r−15/s when r =3 and s=5

18

500

Evaluate the expression 99 + 0.88m if m=70.

99 + (0.88 x 70)

   99 + 61.6

       160.6

Random

100

Write an equivalent expression to  8^3. 

8x8x8

512

200

What is the GCF of 15 and 25?

 

15: 1, 3, 5, 15

25: 1, 5, 25

GCF = 5

300

Mr. Amendt wants to rent a bus for a day. It will cost the daily fee of $99 plus $0.88 per mile driven.

Let m by the number of miles Mr. Amendt drives for the day. Choose an expression that shows the amount he will pay for the bus.

99m + 0.88

m(0.88 + 99)

0.88 + m + 99

99 + 0.88m

99 + 0.88m

400

What is the LCM of 3 and 8?

3: 3, 6, 9, 12, 15, 18, 21, 24

8: 8, 16, 24

LCM = 24

500

Select all the expressions that are equivalent to 12n-9.

5n + 4 + 5n + 4 + 4n

11n + 5 + n -14

7(4n - 5)

3(4n - 3)

3n + 3² - 18 + 9n

11n + 5 + n -14

3(4n - 3)

3n + 3² - 18 + 9n