Review For Test #3

PEMDAS Writing Equations ProportionsLCM/GCFEstimation

Question Simplify the following expression ÷ (9 - 6)

Answer 1 – 10 34

Question What is the value of the expression below? x x 4

Answer 1 – 20 26

Question Simplify the following expression x 8 ÷ 12

Answer 1 – 30 8

Question Which expression below has the same value as x 2 a. (4 + 4) x 6 b. 8 x (9 + 1) c. 6 ÷ 2 x 20

Answer 1 – 40 b. 8 x (9 + 1) = 80

Question Fred 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 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 = b. P = c. P x T = 92

Answer 2 – 10 a. T =

Question 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 ÷ 3 b.S = 78 x 3 c.S =

Answer 2 – 20 a. S = 78 ÷ 3

Question 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 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)

Answer 2 – 40 P = 3n

Question What is the rule for the table of values below? a. Y = x + 3 b. Y = 3x + 1 c. Y = 2x + 1 Input (x)Output (y)

Answer 2 – 50 c. Y = 2x + 1

Question Charlotte’s class has 21 girls and 14 boys. What is the ratio of girls to boys in her class?

Answer 3 – 10 21:14 21 to 14 21/14

Question

Answer 3 – 20 a. X = 3

Question 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 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 – Milligrams

Question The 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 DaysLength of Stem (cm) S

3 – 50 9

Question What is the LCM for the numbers 6 and 8?

Answer 4 – 10 24

Question What is the GCF for the numbers 40 and 12?

Answer 4 – 20 4

Question Jasmine 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 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 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. 3 b. 9 c. 72

Answer 4 – 50 a. 3

Question Candy went to the store to buy some grocery items. Round the amounts to the nearest dollar. How much did Candy spend? Milk - $3.59 Eggs - $1.79 Bananas - $0.79

Answer 5 – 10 $7.00

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

Answer 5 – 20 23

Question Tom spent the following on three items at Sportstown. Round each item and total the amount. Bag of baseballs14.87 Catcher’s mitt36.24 Pair of cleats21.78

Answer 5 – 30 $73.00

Question Johnny bought a cordless phone on sale for $ The regular price of the phone was $ 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 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 gramsb gramsc. 600 grams SnackSugar (g/srvng) Gum drops127 Fudge820 Ice Pop102

Answer 5 – grams