Math worksheet for practicing number bonds with subtraction problems.

Let’s solve each number bond step by step.

In a number bond, the big box on the left is the whole, and the two boxes on the right are the parts.
The subtraction sentence tells us:
Whole – Part = Other Part

So for each problem:
- The first number (like 15) is the whole → goes in the big left box.
- The second number (like 7) is one part → already given in the top right box.
- We subtract to find the missing part → that goes in the bottom right box.
- Then we write the answer of the subtraction in the blank after the equals sign.

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Problem 1: 15 - 7 = ___

Whole = 15 → put in big left box
One part = 7 → already in top right box
Missing part = 15 - 7 = 8 → put in bottom right box
Answer to equation: 8

→ So: 15 - 7 = 8

Number bond:
Left box: 15
Top right: 7
Bottom right: 8

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Problem 2: 8 - 3 = ___

Whole = 8 → left box
Part = 3 → top right
Missing part = 8 - 3 = 5 → bottom right
Equation answer: 5

→ 8 - 3 = 5

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Problem 3: 19 - 6 = ___

Whole = 19 → left box
Part = 6 → top right
Missing part = 19 - 6 = 13 → bottom right
Equation answer: 13

→ 19 - 6 = 13

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Problem 4: 17 - 8 = ___

Whole = 17 → left box
Part = 8 → top right
Missing part = 17 - 8 = 9 → bottom right
Equation answer: 9

→ 17 - 8 = 9

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Problem 5: 16 - 4 = ___

Whole = 16 → left box
Part = 4 → top right
Missing part = 16 - 4 = 12 → bottom right
Equation answer: 12

→ 16 - 4 = 12

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Problem 6: 11 - 4 = ___

Whole = 11 → left box
Part = 4 → top right
Missing part = 11 - 4 = 7 → bottom right
Equation answer: 7

→ 11 - 4 = 7

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All calculations checked and correct.

Final Answer:
1. 15 - 7 = 8 → Number bond: 15 | 7 and 8
2. 8 - 3 = 5 → Number bond: 8 | 3 and 5
3. 19 - 6 = 13 → Number bond: 19 | 6 and 13
4. 17 - 8 = 9 → Number bond: 17 | 8 and 9
5. 16 - 4 = 12 → Number bond: 16 | 4 and 12
6. 11 - 4 = 7 → Number bond: 11 | 4 and 7