Multiplying Decimals worksheet with 12 problems for practicing decimal multiplication.

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 the original numbers and put the decimal point in the answer accordingly.

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A) 6 × 0.4

- 6 × 4 = 24
- 0.4 has 1 decimal place → so answer has 1 decimal place
→ 2.4

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B) 19 × 16

- This is whole number multiplication.
- 19 × 16:
- 10 × 16 = 160
- 9 × 16 = 144
- 160 + 144 = 304
→ 304

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C) 48 × 24

- 48 × 24:
- Break it down: (50 - 2) × 24 = 50×24 - 2×24 = 1200 - 48 = 1152
→ 1152

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D) 3.75 × 3

- Ignore decimals: 375 × 3 = 1125
- 3.75 has 2 decimal places → answer has 2 decimal places
→ 11.25

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E) 12.41 × 8

- 1241 × 8 = ?
- 1000×8=8000
- 200×8=1600 → total 9600
- 40×8=320 → 9920
- 1×8=8 → 9928
- 12.41 has 2 decimal places → answer: 99.28

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F) 27 × 6.23

- First, 27 × 623
- Let’s do 20×623 = 12,460
- 7×623 = 4,361
- Total: 12,460 + 4,361 = 16,821
- 6.23 has 2 decimal places → answer: 168.21

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G) 46.82 × 21

- Multiply 4682 × 21
- 4682 × 20 = 93,640
- 4682 × 1 = 4,682
- Total: 93,640 + 4,682 = 98,322
- 46.82 has 2 decimal places → answer: 983.22

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H) 83 × 5.26

- 83 × 526
- 80×526 = 42,080
- 3×526 = 1,578
- Total: 42,080 + 1,578 = 43,658
- 5.26 has 2 decimal places → answer: 436.58

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I) 57.03 × 16

- 5703 × 16
- 5700 × 16 = 91,200
- 3 × 16 = 48
- Total: 91,200 + 48 = 91,248
- 57.03 has 2 decimal places → answer: 912.48

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J) 61 × 0.07

- 61 × 7 = 427
- 0.07 has 2 decimal places → answer: 4.27

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K) 39 × 7.20

Note: 7.20 is same as 7.2 — but we’ll treat it as having 2 decimal places since it's written that way.

- 39 × 720 = ?
- 40 × 720 = 28,800
- minus 1 × 720 = 720 → 28,800 - 720 = 28,080
- Since 7.20 has 2 decimal places → answer: 280.80
But trailing zero after decimal can be dropped? Actually, in money or precision contexts, sometimes kept. But mathematically, 280.80 = 280.8

However, since the problem says “hundredths” and 7.20 implies two decimal places, let’s keep it as 280.80

Wait — actually, 39 × 7.20:

Better to compute directly:

39 × 7.2 = ?

39 × 7 = 273
39 × 0.2 = 7.8
Total = 273 + 7.8 = 280.8

Since 7.20 is exactly 7.2, and 39 is whole number, answer should have 1 decimal place? Wait — no:

Rule: Count total decimal places in factors.

7.20 has 2 decimal places (even though last digit is 0), 39 has 0 → total 2 decimal places.

So 39 × 7.20 = 280.80 → which is correct with 2 decimal places.

But numerically, 280.80 = 280.8 — however, for consistency with hundredths theme, we write 280.80

Actually, let me recalculate properly:

39 × 7.20 = 39 × (720/100) = (39 × 720)/100

39 × 720:

Breakdown:

30 × 720 = 21,600
9 × 720 = 6,480
Total = 28,080
Divide by 100 → 280.80

Yes → 280.80

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L) 30.06 × 23

- 3006 × 23
- 3000 × 23 = 69,000
- 6 × 23 = 138
- Total = 69,000 + 138 = 69,138
- 30.06 has 2 decimal places → answer: 691.38

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Now, compiling all answers:

Final Answer:
A) 2.4
B) 304
C) 1152
D) 11.25
E) 99.28
F) 168.21
G) 983.22
H) 436.58
I) 912.48
J) 4.27
K) 280.80
L) 691.38