Quiz about Chapter 4 - Multiply Decimals

Question 1

Herald bought 7 grapefruits at the store. Each grapefruit weighed 2.3 pounds. What was the total weight of the grapefruit that Herald bought?

Accepted Answer

16.1 lbs

Answer

14.3 lbs

Answer

17.1 lbs

Answer

18.1 lbs

Question 2

Donald is reducing the size of a photo to put in the yearbook. The original photos is 4,075 pixels large. If he needs the photo to be 1/100 of the actual size, how large is the photo in the yearbook?

Accepted Answer

40.75 pixels

Answer

4.075 pixels

Answer

407.5 pixels

Answer

0.4075 pixels

Question 3

At the book store, it costs $2.35 for a magazine and $7.68 for a picture book. Mr. Holloway bought 2 magazines and 3 picture books. How much will he pay for everything?

Accepted Answer

$27.74

Answer

$10.03

Answer

$25.39

Answer

$12.38

Question 4

Carl's new bathtub can hold 75 gallons of water. If each gallon of water weighs 3.8 kilograms. How much will the water in the bathtub weigh?

Accepted Answer

285 kilograms

Answer

28.5 kilograms

Answer

26.6 kilograms

Answer

266 kilograms

Question 5

Shauna's bought a new chair that is 13.6 inches long. She also bought a matching couch that is 5.4 times as long. How long is the couch?

Accepted Answer

73.44 inches

Answer

19 inches

Answer

7.344 inches

Answer

734.4 inches

Question 6

Charlie is organizing flyers for her new organization. She needs to make 1,000 flyers. Each copy costs $0.17. How much will the cost of all the flyers be?

Accepted Answer

$170

Answer

$1.70

Answer

$17

Answer

$1,700

Question 7

Flora, Holly and James are going to the local fair. Flora spent $12.34 at the fair. Holly spent $4.50 more than Flora spent. James spent 3 times as much as Holly. How much money did James spend?

Accepted Answer

$50.52

Answer

$16.84

Answer

$37.02

Answer

$41.52

Question 8

Dennis uses 0.5 yards of fabric to make a scarf. He wants to make a scarf for his dog and will need 0.8 times as much fabric to make it. How much fabric does he need?

Accepted Answer

0.4 yards

Answer

0.04 yards

Answer

4.00 yards

Answer

40 yards

Question 9

Kyle is building a lego set model of a chair. The original chair is 4.5 feet tall. The model is 1/10 of the size of the original chair. How big is the lego chair model?

Accepted Answer

0.45 feet

Answer

45 feet

Answer

4.5 feet

Answer

450 feet

Question 10

Jenny is at the grocery store to buy oranges. Oranges cost $1.45 per pound. Jenny bought 7 oranges that weighed 4.4 pounds in total. How much did the oranges cost?

Accepted Answer

$6.38

Answer

$10.15

Answer

$30.80

Answer

$5.85

Question 11

Donna has worked a total of 23 hours at the record store this week. Next week she plans to work 1.7 times as many hours as this week. How many hours does Donna plan to work?

Accepted Answer

39.1 hours

Answer

23.7 hours

Answer

34.5 hours

Answer

391 hours

Question 12

Kimberly wants to buy an ice cream cone. Its cost $0.75 for the first 2 toppings. After 2 toppings, the cost is $0.62 for each topping. How much will it cost Kimberly to get 4 toppings?

Accepted Answer

$2.74

Answer

$3.00

Answer

$2.48

Answer

$1.99

Question 13

Lola plans to buy 5 onions from the store to make her soup. If the onions cost $0.86 each, how much will all 5 cost?

Accepted Answer

$4.30

Answer

$0.43

Answer

$43.00

Answer

$5.86

Question 14

Oak park is putting up a new flag pole in the front of the school. The flag pole is going to be 3.25 x 10⁴centimeters tall. How tall is the flag pole going to be?

Accepted Answer

32,500 cm

Answer

32.5 cm

Answer

325 cm

Answer

3,250 cm

Question 15

Darnell is buying stone to fill his new path at his house. he bought 5.7 pounds of stone. The stone costs $3.70 per pound. How much does Darnell need to pay for the stone?

Accepted Answer

$21.09

Answer

$17.10

Answer

$210.90

Answer

$2.10

Question 16

Tara spent $6.75 at the snack stand. John spent 3 times as much as Tara. Henry spent $10.43 more than John. How much money did Henry spend?

Accepted Answer

$30.68

Answer

$20.25

Answer

$17.18

Answer

$31.29

Question 17

Scully is organizing the materials for a science experiment. She has 0.7 liters of water. The experiment asks for 0.3 of her total amount. How much of the water does Scully need for the experiment?

Accepted Answer

0.21 liters

Answer

21 liters

Answer

2.1 liters

Answer

0.021 liters

Question 18

At the general store it costs $2.30 for a pack of gum and $4.64 for a loaf of bread. Colin plans to by 4 packs of gum and 1 loaf of bread. How much will Colin pay for everything?

Accepted Answer

$13.84

Answer

$6.94

Answer

$9.20

Answer

$11.54

Question 19

At the candy shop, it cost $1.35 per pound of candy. Jeff plans to buy 3 large jaw breakers that weigh 3.2 pounds. How much will Jeff spend at the candy shop?

Accepted Answer

$4.32

Answer

$4.05

Answer

$9.60

Answer

$4.55

Question 20

Cam is building a shelf in his new apartment. The shelf is going to be 0.375 x 10³ centimeters long. How long is the shelf going to be?

Accepted Answer

375 cm

Answer

0.375 cm

Answer

3.75 cm

Answer

37.5 cm

Chapter 4 - Multiply Decimals

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