MULTIPLYING DECIMALS WORD PROBLEMS WORKSHEET

Problem 1 :

If the price of 1lb. of sugar is $0.22, find the total cost of 6.5 lbs. of sugar.

Problem 2 :

If the price of an oil is $3.60 per liter, find the total cost 3.5 liters of oil.

Problem 3 :

The cost of a pencil is $1.75 and that of a pen is $2.25. If Lily buys 4 pencils and 5 pens. how much does she have to pay?

Problem 4 :

The price of a pen is $2.50, a book is $22.50 and a bag is $36.80. Find the total cost of 5 pens, 4 books and 3 bags.

Problem 5.

If the length of a rectangle is 6.4 cm and its width is 4.7 cm, find its area.

Problem 6.

If the length of a rectangle is 4.75 cm and its width is 3.5 cm, find its perimeter. 

Problem 7 :

Angelina's car can go 25.5 miles per gallon of gasoline. How many miles can she travel in her with 3.5 gallons of gasoline?

Problem 8 :

The price of a camera is $425. If the camera is on a sale of 12% off, find the price of the camera after discount.

Problem 9 :

The price of a shirt is $56 which is on a sale of 15% discount. If there is a sales tax of 5% on discounted price, find the final price of the shirt.

Problem 10 :

There are 40 cookies in each batch and each cookie needs 0.025 cups of sugar. If Adam makes 4 batches of cookies, find the amount of sugar he needs.

Problem 11 :

If the cost of 5 pencils is $4, find the cost of 13 pencils.

Problem 12 :

The cost price of a product $42.8. If the selling price is 25% more than the cost price, find the selling price.

Problem 13 :

The cost price of a product $56.8, If the product is sold at a loss of 5%, find the selling price.

Problem 14 :

A taxi driver charges a minimum of $12.50 for the first 3 miles and $2.75 for each additional mile. If Daniel travels 9 miles, find the amount he has to pay.

Problem 15 :

The radius of a circular path is 3.5 yards. If Benjamin walks around the circular path and completes 3 rounds, find the distance covered by him (use π ≈ 3.14).

Answers

1. Answer :

The total cost of 6.5 lbs. of sugar :

= 6.5 x 0.22

= $1.43

2. Answer :

The price of the oil is $3.60 per liter.

That is, the price of 1 liter of oil is $3.60.

Total cost of 3.5 liters of oil :

= 3.5 x 3.60

= $12.60

3. Answer :

Amount of money has to be paid by Lily for 4 pencils and 5 pens :

= 4x1.75 + 5x2.25

= 7 + 11.25

= $18.25

4. Answer :

Total cost of 5 pens, 4 books and 3 bags :

= 5(2.50) + 4(22.50) + 3(36.80)

= 12.50 + 90 + 110.40

= $212.90

5. Answer :

Area of a rectangle = length x width

Length = 6.4 cm. and width = 4.7 cm.

= 6.4 x 4.7

= 30.08

Area of the rectangle is 30.08 cm².

6. Answer :

Perimeter of a rectangle = 2(length + width)

Length = 4.75 cm. and width = 3.5 cm.

= 2(4.75 + 3.50)

= 2(8.25)

= 16.5

Perimeter of the rectangle is 16.5 cm.

7. Answer :

Number of miles Angelina can travel in her car with 2.5 gallons of gasoline :

= 2.5 x 25.5

= 89.25

8. Answer :

Price of the camera after 12% off :

= (100 - 12)% of 425

= 88% of 425

= 0.88 x 425

= $374

9. Answer :

Discount price of the shirt :

= (100 - 15)% of 56

= 85% of 56

= 0.85 x 56

= $47.60

Price of the shirt after 5% sales tax on the discounted price :

= (100 + 5)% of 47.60

= 105% of 47.60

= 1.05 x 47.60

= 49.98

Final price of the shirt is $49.98.

10. Answer :

There are 40 cookies in one batch.

Number of cookies in 4 batches :

= 4 x 40

= 160

Amount of sugar needed for 1 cookie = 0.025 cups

Amount of sugar needed for 160 cookies :

= 160 x 0.025

= 4 cups

11. Answer :

The cost of 5 pencils is $4.

Cost of 1 pencil :

= 4/5

= $0.80

Cost of 13 pencils :

= 13 x 0.80

= $10.40

12. Answer :

Selling price of the product :

= (100 + 25) % of 42.8

= 125% of 42.8

= 1.25 x 42.8

= $53.50

13. Answer :

Selling price of the product :

= (100 - 5) % of 56.8

= 95% of 56.8

= 0.95 x 56.8

= $53.96

14. Answer :

Amount of money has to be paid by Daniel for 9 miles :

= cost for first 3 miles + cost for the remaining 6 miles

= 12.50 + 6(2.75)

= 12.50 + 16.50

= $29

15. Answer :

Circumference of a circle = 2πr

Substitute π ≈ 3.14 and r = 3.5.

≈ 2(3.14)(3.5)

= 21.98

Distance covered in 1 round of walk ≈ 21.98 yards

Distance covered in 3 round of walks :

= 3 x 21.98

= 65.94 yards

Distance covered by Benjamin in 3 rounds around the circular path is about 65.94 yards.

Kindly mail your feedback to v4formath@gmail.com

We always appreciate your feedback.