Let's solve each word problem step by step:
---
Problem 1:
Samantha baked a cake that weighed 3.5 pounds. After her family ate some, the cake now weighs 2.1 pounds. How many pounds of cake did her family eat?
-
Initial weight of the cake: 3.5 pounds
-
Remaining weight of the cake: 2.1 pounds
-
Weight eaten by the family: \( 3.5 - 2.1 \)
\[
3.5 - 2.1 = 1.4
\]
Answer: Her family ate
1.4 pounds of cake.
---
Problem 2:
John bought 4.7 gallons of milk. After making cheese and yogurt, he has 2.3 gallons of milk left. How many gallons of milk did John use?
-
Initial amount of milk: 4.7 gallons
-
Remaining milk: 2.3 gallons
-
Milk used: \( 4.7 - 2.3 \)
\[
4.7 - 2.3 = 2.4
\]
Answer: John used
2.4 gallons of milk.
---
Problem 3:
A recipe calls for 5.8 cups of flour. Maria only has 3.2 cups of flour. How many more cups does she need to make the recipe?
-
Flour required by the recipe: 5.8 cups
-
Flour Maria has: 3.2 cups
-
Additional flour needed: \( 5.8 - 3.2 \)
\[
5.8 - 3.2 = 2.6
\]
Answer: Maria needs
2.6 cups more flour.
---
Problem 4:
A restaurant used 8.5 pounds of potatoes to make french fries. At the end of the day, they have 3.6 pounds left. How many pounds of potatoes did they use?
-
Initial amount of potatoes: 8.5 pounds
-
Remaining potatoes: 3.6 pounds
-
Potatoes used: \( 8.5 - 3.6 \)
\[
8.5 - 3.6 = 4.9
\]
Answer: The restaurant used
4.9 pounds of potatoes.
---
Problem 5:
A can of soda has 12.0 ounces. After drinking some, there are 7.4 ounces left. How many ounces did you drink?
-
Initial amount of soda: 12.0 ounces
-
Remaining soda: 7.4 ounces
-
Soda drank: \( 12.0 - 7.4 \)
\[
12.0 - 7.4 = 4.6
\]
Answer: You drank
4.6 ounces of soda.
---
Problem 6:
A recipe requires 6.5 pints of water. You have already added 2.3 pints. How many more pints do you need to add?
-
Total water required: 6.5 pints
-
Water already added: 2.3 pints
-
Additional water needed: \( 6.5 - 2.3 \)
\[
6.5 - 2.3 = 4.2
\]
Answer: You need to add
4.2 pints of water.
---
Problem 7:
A container contains 9.7 gallons of apple juice. After serving some guests, there are 5.2 gallons left. How many gallons of apple juice were served?
-
Initial amount of apple juice: 9.7 gallons
-
Remaining apple juice: 5.2 gallons
-
Apple juice served: \( 9.7 - 5.2 \)
\[
9.7 - 5.2 = 4.5
\]
Answer: 4.5 gallons of apple juice were served.
---
Final Answers:
1.
1.4 pounds
2.
2.4 gallons
3.
2.6 cups
4.
4.9 pounds
5.
4.6 ounces
6.
4.2 pints
7.
4.5 gallons
\boxed{1.4, 2.4, 2.6, 4.9, 4.6, 4.2, 4.5}
Parent Tip: Review the logic above to help your child master the concept of decimals word problems worksheet.
