Grade 5 Decimals Word Problems Worksheet from K5 Learning

Let’s solve each problem step by step.

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Problem 1:

> Each batch of cookie mix needs 0.4 cups of sugar, and each batch can make 16 cookies. If Ashley is making 4 batches of cookies, how much sugar does she need?

We don’t need the number of cookies (16) — that’s extra info. We only care about sugar per batch and number of batches.

Each batch → 0.4 cups
Number of batches → 4

So total sugar = 0.4 × 4

Calculate:
0.4 × 4 = 1.6

✔ She needs 1.6 cups of sugar.

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Problem 2:

> Ashley found 2 boxes of sugar in the kitchen. The green box is 1.26 kg, and the red box is 1.026 kg. Which box contains more sugar?

Compare 1.26 and 1.026.

Write them with same decimal places to compare easily:

1.260
1.026

Now compare digit by digit from left:

- Units place: both are 1 → tie
- Tenths place: 2 vs 0 → 2 > 0 → so 1.260 > 1.026

✔ The green box has more sugar.

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Problem 3:

> Ashley measured 1.43 cups of sugar. How much more sugar does she need?

Wait — this question seems incomplete. It doesn’t say how much sugar she *needs* in total. But looking back at Problem 1, we know she needs 1.6 cups total for 4 batches.

Assuming this question refers to the same situation (making 4 batches), then:

Total needed = 1.6 cups
Already measured = 1.43 cups
More needed = 1.6 - 1.43

But 1.6 is the same as 1.60

So:
1.60
–1.43
= ?

Start from right:
0 – 3 → borrow → 10 – 3 = 7
5 – 4 = 1 (after borrowing)
1 – 1 = 0

So: 0.17

✔ She needs 0.17 more cups of sugar.

*(Note: If this was meant to be a standalone question without context, it would be unsolvable. But since it follows Problem 1 and uses “she” referring to Ashley making cookies, we assume it connects to Problem 1.)*

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Final Answer:
1. 1.6 cups
2. Green box
3. 0.17 cups