Review For Test #3

PEMDASWriting

EquationsProportions LCM/GCF Estimation

10 10 10 10 10

20 20 20 20 20

30 30 30 30 30

40 40 40 40 40

50 50 50 50 50

Question 1 - 10

Simplify the following expression.

40 - 18 ÷ (9 - 6)

Answer 1 – 10

34

Question 1 - 20

What is the value of the expression below?

60- 2 x 7 + 5 x 4

Answer 1 – 20

26

Question 1 - 30

Simplify the following expression.

4 + 6 x 8 ÷ 12

Answer 1 – 30

8

Question 1 - 40

Which expression below has the same value as 48 - 8 x 2

a. (4 + 4) x 6b. 8 x (9 + 1)c. 6 ÷ 2 x 20

Answer 1 – 40

b. 8 x (9 + 1) = 80

Question 1 - 50Fred had $35 in his wallet. He bought 6 cards for $2.50 each and 4 pens for $3.25 each. After paying for his items,

he found another $6 in his pocket. This expression can be written as 35 - (6 x 2.50) - (4 x 3.25) + 6

Simplify this expression……….

Answer 1 – 50

$13.00

Question 2 - 10

Pam weighs 6 pounds less than her friend Tina. Pam weighs 92 pounds. How much does Tina weigh?Which equation models the situation above.

a. T = 92 + 6b. P = 92 - 6c. P x T = 92

Answer 2 – 10

a. T = 92 + 6

Question 2 - 20

• Mr. Chen had 78 cookies and he handed out 3 cookies to each student in his class, which used up all the cookies. Which equation can be used to calculate s, the number of students in his class?

a. S = 78 ÷ 3b. S = 78 x 3c. S = 75 - 3

Answer 2 – 20

a. S = 78 ÷ 3

Question 2 - 30

• Jose ran 6 laps at track practice on each of two days last week. He ran 4 laps at practice on each of the other two days. Which equation can be used to find l. The total number of laps he ran?

• A. L = 6 x 4• B. L = 2 (6) + 2 (4)• C. L = (6 + 4) ÷ 2

Answer 2 – 30

b. L = 2 (6) + 2 (4)

Question 2 - 40

Which formula can be used to find the perimeter p of an equilateral triangle with

A side length of n?

a. P = n + 3 b. P = 3n c. = 6 + n

Side Length (n) Perimeter (p)

10 30

12 36

15 45

20 60

Answer 2 – 40

P = 3n

Question 2 - 50

What is the rule for the table of values below?

a. Y = x + 3b. Y = 3x + 1c. Y = 2x + 1

Input (x) Output (y)

2 5

4 9

6 13

8 17

Answer 2 – 50

c. Y = 2x + 1

Question 3 - 10

Charlotte’s class has 21 girls and 14 boys. What is the ratio of

girls to boys in her class?

Answer 3 – 10

21:1421 to 14

21/14

Question 3 - 20

Answer 3 – 20

a. X = 3

Question 3 - 30

If there are 8 brown squirrels in a 20 acre forest, what would be the

number of brown squirrels in a 60 acre forest?

Write the proportion only!

Answer 3 – 30

Question 3 - 40

Two cups of raw broccoli contain 200 milligrams of vitamin C.

About how many milligrams of Vitamin C are in 6 cups of raw

broccoli?

Answer 3 – 40

600 Milligrams

Question 3 - 50The table below shows the growth of a seedling over a

period of days. If the growth rate is constant, how tall will the seedling be after 12 days?

Number of Days Length of Stem (cm)

5 2

7 4

10 7

12 S

3 – 50

9

Question 4 - 10What is the LCM for the numbers 6 and 8?

Answer 4 – 10

24

Question 4 - 20

What is the GCF for the numbers 40 and 12?

Answer 4 – 20

4

Question 4 - 30Jasmine has 36 blue bead and 20 yellow beads. She wants to use all the beads to make bracelets that each have an equal number of each color of bead. What is the GREATEST number of beads Jasmine can use to divide the beads evenly?

Answer 4 – 30

4

Question 4 - 40

Mrs. Taylor asked her students to write down the least common multiple of 6 and 8. TJ wrote the 24 and Griffin wrote 48. Who had the right answer?

Answer 4 – 40

TJ

Question 4 - 50

Julian collects stamps. He has 18 bird stamps, 9 flower stamps, and 12 butterfly stamps. For a school project, he will display an equal number of each kind of stamp on small poster boards. What is the greatest common factor of the different styles of stamps?

a. 3b. 9c. 72

Answer 4 – 50

a. 3

Question 5 - 10

Candy went to the store to buy some grocery items. Round the amounts to the nearest dollar. How much did Candy spend?

Milk - $3.59Eggs - $1.79

Bananas - $0.79

Answer 5 – 10

$7.00

Question 5 - 20

Solve the following addition problem by rounding to the nearest whole number before

adding.7.628.134.90

+1.82

Answer 5 – 20

23

Question 5 - 30

Tom spent the following on three items at Sportstown. Round each item and total the amount.

Bag of baseballs 14.87

Catcher’s mitt 36.24

Pair of cleats 21.78

Answer 5 – 30

$73.00

Question 5 - 40

Johnny bought a cordless phone on sale for $15.99. The regular price of the phone was $20.00. What is the best estimate of the amount of money that Johnny saved by buying the phone on sale?

Answer 5 – 40

$4.00

Question 5 - 50

The sugar content of some sweet snacks is shown in the table.

If you eat one serving of each of These, approximately how many Grams of sugar are you eating?

a. 1100 grams b. 1000 grams c. 600 grams

Snack Sugar (g/srvng)

Gum drops 127

Fudge 820

Ice Pop 102

Answer 5 – 50

1000 grams