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ReasoningAges 10-12

Number patterns

Find the addition rule in a number sequence and use it to complete the next term. Review suitability for your learners before teaching.

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Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 3, 15, 27, 39, ____
2. What comes next? 17, 24, 31, 38, ____
3. What comes next? 7, 15, 23, 31, ____
4. What comes next? 9, 20, 31, 42, ____
5. What comes next? 12, 23, 34, 45, ____
6. What comes next? 10, 16, 22, 28, ____
7. What comes next? 11, 15, 19, 23, ____
8. What comes next? 16, 21, 26, 31, ____
9. What comes next? 2, 7, 12, 17, ____
10. What comes next? 16, 20, 24, 28, ____
11. What comes next? 5, 17, 29, 41, ____
12. What comes next? 1, 12, 23, 34, ____

12 questions · Seed 49 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 3, 15, 27, 39, ____
51
Add 12 each time.
2. What comes next? 17, 24, 31, 38, ____
45
Add 7 each time.
3. What comes next? 7, 15, 23, 31, ____
39
Add 8 each time.
4. What comes next? 9, 20, 31, 42, ____
53
Add 11 each time.
5. What comes next? 12, 23, 34, 45, ____
56
Add 11 each time.
6. What comes next? 10, 16, 22, 28, ____
34
Add 6 each time.
7. What comes next? 11, 15, 19, 23, ____
27
Add 4 each time.
8. What comes next? 16, 21, 26, 31, ____
36
Add 5 each time.
9. What comes next? 2, 7, 12, 17, ____
22
Add 5 each time.
10. What comes next? 16, 20, 24, 28, ____
32
Add 4 each time.
11. What comes next? 5, 17, 29, 41, ____
53
Add 12 each time.
12. What comes next? 1, 12, 23, 34, ____
45
Add 11 each time.

12 questions · Seed 49 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 3, 15, 27, 39, ____
2. What comes next? 17, 24, 31, 38, ____
3. What comes next? 7, 15, 23, 31, ____
4. What comes next? 9, 20, 31, 42, ____
5. What comes next? 12, 23, 34, 45, ____
6. What comes next? 10, 16, 22, 28, ____
7. What comes next? 11, 15, 19, 23, ____
8. What comes next? 16, 21, 26, 31, ____
9. What comes next? 2, 7, 12, 17, ____
10. What comes next? 16, 20, 24, 28, ____
11. What comes next? 5, 17, 29, 41, ____
12. What comes next? 1, 12, 23, 34, ____

12 questions · Seed 49 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 3, 15, 27, 39, ____
51
Add 12 each time.
2. What comes next? 17, 24, 31, 38, ____
45
Add 7 each time.
3. What comes next? 7, 15, 23, 31, ____
39
Add 8 each time.
4. What comes next? 9, 20, 31, 42, ____
53
Add 11 each time.
5. What comes next? 12, 23, 34, 45, ____
56
Add 11 each time.
6. What comes next? 10, 16, 22, 28, ____
34
Add 6 each time.
7. What comes next? 11, 15, 19, 23, ____
27
Add 4 each time.
8. What comes next? 16, 21, 26, 31, ____
36
Add 5 each time.
9. What comes next? 2, 7, 12, 17, ____
22
Add 5 each time.
10. What comes next? 16, 20, 24, 28, ____
32
Add 4 each time.
11. What comes next? 5, 17, 29, 41, ____
53
Add 12 each time.
12. What comes next? 1, 12, 23, 34, ____
45
Add 11 each time.

12 questions · Seed 49 · Age guidance, not curriculum certification