Printable worksheet for practicing subtraction of decimals to one decimal place.

Let's solve the "Subtracting Decimals to 1DP Sheet 2" step by step and explain the process.

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🔢 Objective:

Subtract decimals that go to one decimal place (1DP).
Remember:
- 10 tenths = 1 whole
- You can use your knowledge of whole number subtraction to help.

For example:
> $31 - 15 = 16$, so $3.1 - 1.5 = 1.6$

We’ll apply this logic to each problem.

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## ✔ Solutions with Explanations

We'll go through all 60 problems, showing the steps for a few examples, then list all answers.

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🟦 Basic Strategy:

Align the decimal points and subtract as if they were whole numbers. Then add the decimal point in the correct place.

Alternatively, think in terms of tenths:
- $0.7 = 7$ tenths
- $0.2 = 2$ tenths
- So $0.7 - 0.2 = 5$ tenths = $0.5$

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✔ Let’s Solve Each Problem:

#### Group 1: Problems 1–20
1) $0.7 - 0.2 = 0.5$
2) $0.8 - 0.3 = 0.5$
3) $1 - 0.1 = 0.9$
4) $0.5 - 0.5 = 0.0$
5) $0.8 - 0.6 = 0.2$
6) $0.7 - 0.3 = 0.4$
7) $0.8 - 0.4 = 0.4$
8) $0.9 - 0.6 = 0.3$
9) $1 - 0.7 = 0.3$
10) $0.9 - 0.8 = 0.1$
11) $1.2 - 0.7 = 0.5$
12) $1.3 - 0.4 = 0.9$
13) $1.1 - 0.5 = 0.6$
14) $1.2 - 0.2 = 1.0$
15) $2.3 - 0.1 = 2.2$
16) $1.7 - 0.3 = 1.4$
17) $1.2 - 0.8 = 0.4$
18) $2 - 0.7 = 1.3$
19) $2.4 - 1.1 = 1.3$
20) $3.7 - 1.2 = 2.5$

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#### Group 2: Problems 21–40
21) $1.4 - 1.3 = 0.1$
22) $2.8 - 2.1 = 0.7$
23) $3.2 - 1.3 = 1.9$
24) $3.1 - 2.1 = 1.0$
25) $5.4 - 3.3 = 2.1$
26) $3.8 - 2.5 = 1.3$
27) $5.3 - 4.3 = 1.0$
28) $6.5 - 4.1 = 2.4$
29) $7.8 - 5.7 = 2.1$
30) $8.8 - 6.5 = 2.3$
31) $9.6 - 7.4 = 2.2$
32) $3.9 - 2.6 = 1.3$
33) $7 - 1.9 = 5.1$ → Think: $7.0 - 1.9 = 5.1$
34) $8 - 5.4 = 2.6$ → $8.0 - 5.4 = 2.6$
35) $4.8 - 2.7 = 2.1$
36) $5.1 - 3.5 = 1.6$
37) $7.5 - 3.8 = 3.7$
38) $6 - 2.6 = 3.4$ → $6.0 - 2.6 = 3.4$
39) $9.4 - 3.6 = 5.8$
40) $8.2 - 4.4 = 3.8$

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#### Group 3: Problems 41–60
41) $5.4 - 2.9 = 2.5$
42) $7.6 - 3.7 = 3.9$
43) $10.5 - 4.4 = 6.1$
44) $11.1 - 7.7 = 3.4$
45) $12.8 - 4.5 = 8.3$
46) $13 - 4.3 = 8.7$ → $13.0 - 4.3 = 8.7$
47) $4.8 - 1.1 = 3.7$
48) $9.5 - 5.7 = 3.8$
49) $16.8 - 4.3 = 12.5$
50) $6.2 - 4.7 = 1.5$
51) $7.9 - 3.5 = 4.4$
52) $10 - 2.6 = 7.4$ → $10.0 - 2.6 = 7.4$
53) $15.5 - 1.7 = 13.8$
54) $21 - 3.6 = 17.4$ → $21.0 - 3.6 = 17.4$
55) $12.3 - 2.3 = 10.0$
56) $17.6 - 4.2 = 13.4$
57) $24 - 3.8 = 20.2$ → $24.0 - 3.8 = 20.2$
58) $15.3 - 7.1 = 8.2$
59) $20 - 12.6 = 7.4$ → $20.0 - 12.6 = 7.4$
60) $12 - 3.4 = 8.6$ → $12.0 - 3.4 = 8.6$

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✔ Final Answer Key:

| # | Answer |
|---|--------|
| 1 | 0.5 |
| 2 | 0.5 |
| 3 | 0.9 |
| 4 | 0.0 |
| 5 | 0.2 |
| 6 | 0.4 |
| 7 | 0.4 |
| 8 | 0.3 |
| 9 | 0.3 |
|10 | 0.1 |
|11 | 0.5 |
|12 | 0.9 |
|13 | 0.6 |
|14 | 1.0 |
|15 | 2.2 |
|16 | 1.4 |
|17 | 0.4 |
|18 | 1.3 |
|19 | 1.3 |
|20 | 2.5 |
|21 | 0.1 |
|22 | 0.7 |
|23 | 1.9 |
|24 | 1.0 |
|25 | 2.1 |
|26 | 1.3 |
|27 | 1.0 |
|28 | 2.4 |
|29 | 2.1 |
|30 | 2.3 |
|31 | 2.2 |
|32 | 1.3 |
|33 | 5.1 |
|34 | 2.6 |
|35 | 2.1 |
|36 | 1.6 |
|37 | 3.7 |
|38 | 3.4 |
|39 | 5.8 |
|40 | 3.8 |
|41 | 2.5 |
|42 | 3.9 |
|43 | 6.1 |
|44 | 3.4 |
|45 | 8.3 |
|46 | 8.7 |
|47 | 3.7 |
|48 | 3.8 |
|49 | 12.5 |
|50 | 1.5 |
|51 | 4.4 |
|52 | 7.4 |
|53 | 13.8 |
|54 | 17.4 |
|55 | 10.0 |
|56 | 13.4 |
|57 | 20.2 |
|58 | 8.2 |
|59 | 7.4 |
|60 | 8.6 |

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🧠 Tips & Tricks:

- Line up the decimal points when writing out.
- Use mental math: e.g., $1.2 - 0.7$: Think "12 tenths minus 7 tenths = 5 tenths = 0.5"
- For problems like $7 - 1.9$: write it as $7.0 - 1.9$
- When subtracting from a whole number, treat it as a decimal: $10 = 10.0$

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✔ Final Note: This worksheet reinforces understanding of decimal subtraction, especially with tenths, and builds confidence in working with decimals using familiar whole-number strategies.

Let me know if you'd like a printable version or a PDF!