Number Bonds Worksheet - KS2 - Intermediate
Number Bonds worksheet for Key Stage 2 / Year 3-6 (Ages 7-11). Intermediate level maths practice, aligned to the UK National Curriculum. Print-ready with answer key included.
Exploring Number Bonds: Building Strong Foundations
Key Stage 2 (Ages 7-11) - Intermediate Level
Instructions: This worksheet will help you strengthen your understanding of number bonds. You'll engage in a variety of activities designed to improve your mental arithmetic skills and number sense. Follow the instructions for each activity carefully and use the provided spaces to write your answers.
Number Bonds to 10
Identify the missing number in each pair to complete the number bond to 10. Write your answer in the box provided.
1. 7 + ___ = 10
2. 3 + ___ = 10
3. ___ + 5 = 10
4. 9 + ___ = 10
5. ___ + 2 = 10
6. 4 + ___ = 10
7. ___ + 6 = 10
8. 8 + ___ = 10
Number Bonds to 100
Fill in the missing numbers to complete each number bond to 100. Use the box to show your answer.
1. 45 + ___ = 100
2. ___ + 25 = 100
3. 60 + ___ = 100
4. ___ + 70 = 100
5. 85 + ___ = 100
6. ___ + 55 = 100
7. 30 + ___ = 100
8. ___ + 90 = 100
Number Bonds with Multiples of 10
Complete the number bonds using multiples of 10. Write the missing number in the box.
1. 30 + ___ = 100
2. ___ + 40 = 100
3. 70 + ___ = 100
4. ___ + 20 = 100
5. 50 + ___ = 100
6. ___ + 60 = 100
7. 90 + ___ = 100
8. ___ + 10 = 100
Number Bonds to 1000
Challenge yourself with these number bonds to 1000. Fill in the missing numbers.
1. 450 + ___ = 1000
2. ___ + 250 = 1000
3. 600 + ___ = 1000
4. ___ + 700 = 1000
5. 850 + ___ = 1000
6. ___ + 550 = 1000
7. 300 + ___ = 1000
8. ___ + 900 = 1000
Number Bonds with Decimals
Complete these number bonds using decimals up to one decimal place. Write your answers in the boxes.
1. 4.5 + ___ = 10
2. ___ + 3.2 = 10
3. 5.6 + ___ = 10
4. ___ + 7.8 = 10
5. 2.3 + ___ = 10
6. ___ + 1.9 = 10
7. 8.4 + ___ = 10
8. ___ + 6.7 = 10
Word Problems with Number Bonds
Solve these word problems using your knowledge of number bonds. Write your answers in the boxes provided.
1. Sarah has 15 apples. She needs 25 apples to make a pie. How many more apples does she need?
2. A box contains 60 marbles. If 40 marbles are red, how many are not red?
3. Tom has £70. He spends £30 on a toy. How much money does he have left?
4. There are 100 students in a school. If 45 are girls, how many are boys?
Number Bonds Table
Complete the number bonds table by filling in the missing numbers.
| 10 | 2 | 8 | |
| 5 | 3 | 7 | |
| 4 | 6 | ||
| 9 | 1 | 5 |
Fill in the blanks to complete each number bond to 10.
Number Bonds with Fractions
Fill in the missing fractions to complete each number bond to 1. Use the boxes provided for your answers.
1. 1/4 + ___ = 1
2. ___ + 3/5 = 1
3. 2/3 + ___ = 1
4. ___ + 1/2 = 1
5. 3/8 + ___ = 1
6. ___ + 5/6 = 1
7. 7/10 + ___ = 1
8. ___ + 1/3 = 1
Activity 1: 3 ; 7 ; 5 ; 1 ; 8 ; 6 ; 4 ; 2
Activity 2: 55 ; 75 ; 40 ; 30 ; 15 ; 45 ; 70 ; 10
Activity 3: 70 ; 60 ; 30 ; 80 ; 50 ; 40 ; 10 ; 90
Activity 4: 550 ; 750 ; 400 ; 300 ; 150 ; 450 ; 700 ; 100
Activity 5: 5.5 ; 6.8 ; 4.4 ; 2.2 ; 7.7 ; 8.1 ; 1.6 ; 3.3
Activity 6: 10 ; 20 ; 40 ; 55
Activity 7: 8 ; 5 ; 6 ; 9
Activity 8: 3/4 ; 2/5 ; 1/3 ; 1/2 ; 5/8 ; 1/6 ; 3/10 ; 2/3
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