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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? 9, 21, 33, 45, ____
2. What comes next? 1, 16, 31, 46, ____
3. What comes next? 7, 11, 15, 19, ____
4. What comes next? 9, 15, 21, 27, ____
5. What comes next? 13, 25, 37, 49, ____
6. What comes next? 11, 18, 25, 32, ____
7. What comes next? 2, 9, 16, 23, ____
8. What comes next? 5, 13, 21, 29, ____
9. What comes next? 20, 35, 50, 65, ____
10. What comes next? 14, 22, 30, 38, ____
11. What comes next? 7, 14, 21, 28, ____
12. What comes next? 19, 33, 47, 61, ____

12 questions · Seed 115 · 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? 9, 21, 33, 45, ____
57
Add 12 each time.
2. What comes next? 1, 16, 31, 46, ____
61
Add 15 each time.
3. What comes next? 7, 11, 15, 19, ____
23
Add 4 each time.
4. What comes next? 9, 15, 21, 27, ____
33
Add 6 each time.
5. What comes next? 13, 25, 37, 49, ____
61
Add 12 each time.
6. What comes next? 11, 18, 25, 32, ____
39
Add 7 each time.
7. What comes next? 2, 9, 16, 23, ____
30
Add 7 each time.
8. What comes next? 5, 13, 21, 29, ____
37
Add 8 each time.
9. What comes next? 20, 35, 50, 65, ____
80
Add 15 each time.
10. What comes next? 14, 22, 30, 38, ____
46
Add 8 each time.
11. What comes next? 7, 14, 21, 28, ____
35
Add 7 each time.
12. What comes next? 19, 33, 47, 61, ____
75
Add 14 each time.

12 questions · Seed 115 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 9, 21, 33, 45, ____
2. What comes next? 1, 16, 31, 46, ____
3. What comes next? 7, 11, 15, 19, ____
4. What comes next? 9, 15, 21, 27, ____
5. What comes next? 13, 25, 37, 49, ____
6. What comes next? 11, 18, 25, 32, ____
7. What comes next? 2, 9, 16, 23, ____
8. What comes next? 5, 13, 21, 29, ____
9. What comes next? 20, 35, 50, 65, ____
10. What comes next? 14, 22, 30, 38, ____
11. What comes next? 7, 14, 21, 28, ____
12. What comes next? 19, 33, 47, 61, ____

12 questions · Seed 115 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 9, 21, 33, 45, ____
57
Add 12 each time.
2. What comes next? 1, 16, 31, 46, ____
61
Add 15 each time.
3. What comes next? 7, 11, 15, 19, ____
23
Add 4 each time.
4. What comes next? 9, 15, 21, 27, ____
33
Add 6 each time.
5. What comes next? 13, 25, 37, 49, ____
61
Add 12 each time.
6. What comes next? 11, 18, 25, 32, ____
39
Add 7 each time.
7. What comes next? 2, 9, 16, 23, ____
30
Add 7 each time.
8. What comes next? 5, 13, 21, 29, ____
37
Add 8 each time.
9. What comes next? 20, 35, 50, 65, ____
80
Add 15 each time.
10. What comes next? 14, 22, 30, 38, ____
46
Add 8 each time.
11. What comes next? 7, 14, 21, 28, ____
35
Add 7 each time.
12. What comes next? 19, 33, 47, 61, ____
75
Add 14 each time.

12 questions · Seed 115 · Age guidance, not curriculum certification