Decimal Multiplication Word Problems Worksheets for Kids Online - Free Printable

Let's solve each of the word problems step by step.

---

Problem 1:

Chef John used 2.75 kg of flour and 3.5 times as much sugar for a cake recipe. How many kilograms of sugar did he use?

- Step 1: Identify the amount of flour used.
\[
\text{Flour} = 2.75 \, \text{kg}
\]

- Step 2: Calculate the amount of sugar used, which is 3.5 times the amount of flour.
\[
\text{Sugar} = 3.5 \times 2.75
\]

- Step 3: Perform the multiplication.
\[
3.5 \times 2.75 = 9.625
\]

- Final Answer:
\[
\boxed{9.625}
\]

---

Problem 2:

A recipe requires 2.75 cups of flour for a single batch. If you want to make 4.5 batches, how many cups of flour will you need?

- Step 1: Identify the amount of flour needed for one batch.
\[
\text{Flour per batch} = 2.75 \, \text{cups}
\]

- Step 2: Calculate the total amount of flour needed for 4.5 batches.
\[
\text{Total flour} = 2.75 \times 4.5
\]

- Step 3: Perform the multiplication.
\[
2.75 \times 4.5 = 12.375
\]

- Final Answer:
\[
\boxed{12.375}
\]

---

Problem 3:

A bottle contains 6.35 ounces of olive oil. If you use 2.3 times as much olive oil for a recipe, how many ounces of olive oil will you use?

- Step 1: Identify the amount of olive oil in the bottle.
\[
\text{Olive oil in bottle} = 6.35 \, \text{ounces}
\]

- Step 2: Calculate the amount of olive oil used for the recipe.
\[
\text{Olive oil used} = 6.35 \times 2.3
\]

- Step 3: Perform the multiplication.
\[
6.35 \times 2.3 = 14.605
\]

- Final Answer:
\[
\boxed{14.605}
\]

---

Problem 4:

A pound of butter costs $4.75. If you buy 3.2 pounds, how much will it cost?

- Step 1: Identify the cost per pound of butter.
\[
\text{Cost per pound} = \$4.75
\]

- Step 2: Calculate the total cost for 3.2 pounds.
\[
\text{Total cost} = 4.75 \times 3.2
\]

- Step 3: Perform the multiplication.
\[
4.75 \times 3.2 = 15.20
\]

- Final Answer:
\[
\boxed{15.20}
\]

---

Problem 5:

A recipe calls for 3.45 pounds of meat and you need to prepare 2.5 times this amount for a party. How many pounds of meat do you need?

- Step 1: Identify the amount of meat required for one recipe.
\[
\text{Meat per recipe} = 3.45 \, \text{pounds}
\]

- Step 2: Calculate the total amount of meat needed for 2.5 times the recipe.
\[
\text{Total meat} = 3.45 \times 2.5
\]

- Step 3: Perform the multiplication.
\[
3.45 \times 2.5 = 8.625
\]

- Final Answer:
\[
\boxed{8.625}
\]

---

Problem 6:

A loaf of bread weighs 0.95 kg. If you bake 4.5 times this weight, how much will the total weight be?

- Step 1: Identify the weight of one loaf of bread.
\[
\text{Weight of one loaf} = 0.95 \, \text{kg}
\]

- Step 2: Calculate the total weight for 4.5 times the weight of one loaf.
\[
\text{Total weight} = 0.95 \times 4.5
\]

- Step 3: Perform the multiplication.
\[
0.95 \times 4.5 = 4.275
\]

- Final Answer:
\[
\boxed{4.275}
\]

---

Problem 7:

A bottle contains 5.25 ounces of vanilla extract. If you use 3.5 times as much vanilla extract for a recipe, how many ounces of vanilla extract will you use?

- Step 1: Identify the amount of vanilla extract in the bottle.
\[
\text{Vanilla extract in bottle} = 5.25 \, \text{ounces}
\]

- Step 2: Calculate the amount of vanilla extract used for the recipe.
\[
\text{Vanilla extract used} = 5.25 \times 3.5
\]

- Step 3: Perform the multiplication.
\[
5.25 \times 3.5 = 18.375
\]

- Final Answer:
\[
\boxed{18.375}
\]

---

Problem 8:

A gallon of milk costs $3.45. If you buy 2.3 gallons, how much will it cost?

- Step 1: Identify the cost per gallon of milk.
\[
\text{Cost per gallon} = \$3.45
\]

- Step 2: Calculate the total cost for 2.3 gallons.
\[
\text{Total cost} = 3.45 \times 2.3
\]

- Step 3: Perform the multiplication.
\[
3.45 \times 2.3 = 7.935
\]

- Final Answer:
\[
\boxed{7.935}
\]

---

Final Answers:

1. \(\boxed{9.625}\)
2. \(\boxed{12.375}\)
3. \(\boxed{14.605}\)
4. \(\boxed{15.20}\)
5. \(\boxed{8.625}\)
6. \(\boxed{4.275}\)
7. \(\boxed{18.375}\)
8. \(\boxed{7.935}\)