Decimal word problems for 5th grade
These decimal word problems are great for ages 10 and older who are looking to improve their decimal skills.
Asha started with 1.74 cups and ended with half a cup of sugar after baking. How much sugar did she use in the baking process?
-
Answer
1.24 cups of sugar
-
Explanation
Half a cup can be written as 0.50 in decimal form.
1.74 - 0.50 = 1.24
Convert ⅜ to a decimal
-
Answer
0.375
-
Explanation
When converting to decimals, try to convert the denominator to either 10, 100 or 1000. Try:
8 x 125 = 1000.
Then 3 x 125 = 375
The fraction is now easier to convert being 375/1000 = 0.375
Dennis has 6.77 litres of water in a barrel. How many litres of water does he need to add to get 7.50 litres in the barrel?
-
Answer
0.73
-
Explanation
6.77 + 0.73 = 7.50
Order these decimals from smallest to largest:
0.2, 0.28, 0.19, 0.09, 0.35
-
Answer
0.09, 0.19, 0.2, 0.28, 0.35
-
Explanation
0.09 is the smallest
0.19 is bigger
0.2 is bigger
0.28 is bigger
0.35 is the biggest
Dilly wants to eat just about ten calories per brownie. Which of these brownies should he eat?
Brownie A = 8.98 calories
Brownie B = 9.89 calories
Brownie C = 9.98 calories
Brownie D = 10.03 calories
Brownie E = 10.30 calories
-
Answer
Brownie C
-
Explanation
9.98 is within 0.02 of 10 making it the closest of the options to 10.
What is 4/100 as a decimal?
-
Answer
0.04
-
Explanation
When dividing by 100, you should move two decimal places to the right. Moving 4 two decimal places to the right equals 0.04. You can also think of 100 as 10 x 10. And:
4/10 = 0.4
0.4/10 = 0.04
Tabby wants to learn to rank the numbers 0.3, 0.03 and 0.33 from smallest to largest. Which of these sets are correctly ranked?
Set 1: 0.03, 0.33, 0.3
Set 2: 0.03, 0.3, 0.33
Set 3: 0.33, 0.3, 0.03
-
Answer
Set 2
-
Explanation
When converting to decimals, try to convert the denominator to either 10, 100 or 1000. Try:
75/15 = 5 and 5 x 20 = 100. Then 30/15 = 2 and 2 x 20 = 40
The fraction is now easier to convert being 40/100 = 0.4
What Is 30/75 as a decimal?
-
Answer
0.4
-
Explanation
When converting to decimals, try to convert the denominator to either 10, 100 or 1000. Try:
75/15 = 5 and 5 x 20 = 100. Then
30/15 = 2 and 2 x 20 = 40
The fraction is now easier to convert being 40/100 = 0.4
Jenine buys a pack of oranges for $3.05, a bunch of strawberries for $1.49 and a case of apples for $2.30. What does her total bill come to?
-
Answer
6.84
-
Explanation
It helps to first add the numbers after the decimal point.
5 + 49 + 30 = 84
Then add the numbers in front of the decimal point.
3 + 1 + 2 = 6
Together they make 6.84
Convert 15/8 to a decimal
-
Answer
1.875
-
Explanation
When converting to decimals, try to convert the denominator to either 10, 100 or 1000. Try:
8 x 125 = 1000 then:
15 x 125 = 1875
The fraction is now easier to convert being 1875/1000 = 1.875
Interested in more math problem practice? Try our worksheets and math problems on other topics on the links below.