5th Grade Math Worksheet: Multiplying Decimals

Let’s solve each multiplication problem step by step. We’ll multiply the numbers as if they were whole numbers first, then count how many decimal places are in both numbers together — that tells us where to put the decimal point in the answer.

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Problem 1: 1.1 × 1.3

Step 1: Ignore decimals → 11 × 13
11 × 13 = 143

Step 2: Count decimal places
1.1 has 1 decimal place
1.3 has 1 decimal place
Total = 2 decimal places

Step 3: Put decimal in answer → 1.43

✔ Answer: 1.43

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Problem 2: 2.4 × 3.1

Step 1: 24 × 31
24 × 30 = 720
24 × 1 = 24
720 + 24 = 744

Step 2: Decimal places
2.4 → 1
3.1 → 1
Total = 2

Step 3: Answer → 7.44

✔ Answer: 7.44

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Problem 3: 4.5 × 5.3

Step 1: 45 × 53
Break it down:
45 × 50 = 2250
45 × 3 = 135
2250 + 135 = 2385

Step 2: Decimal places
4.5 → 1
5.3 → 1
Total = 2

Step 3: Answer → 23.85

✔ Answer: 23.85

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Problem 4: 4.1 × 3.3

Step 1: 41 × 33
41 × 30 = 1230
41 × 3 = 123
1230 + 123 = 1353

Step 2: Decimal places
4.1 → 1
3.3 → 1
Total = 2

Step 3: Answer → 13.53

✔ Answer: 13.53

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Problem 5: 5.4 × 2.1

Step 1: 54 × 21
54 × 20 = 1080
54 × 1 = 54
1080 + 54 = 1134

Step 2: Decimal places
5.4 → 1
2.1 → 1
Total = 2

Step 3: Answer → 11.34

✔ Answer: 11.34

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Problem 6: 6.5 × 5.2

Step 1: 65 × 52
65 × 50 = 3250
65 × 2 = 130
3250 + 130 = 3380

Step 2: Decimal places
6.5 → 1
5.2 → 1
Total = 2

Step 3: Answer → 33.80 → which is same as 33.8

✔ Answer: 33.8

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Final Answer:
1. 1.43
2. 7.44
3. 23.85
4. 13.53
5. 11.34
6. 33.8