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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? 3, 16, 29, 42, ____
3. What comes next? 17, 22, 27, 32, ____
4. What comes next? 16, 22, 28, 34, ____
5. What comes next? 20, 34, 48, 62, ____
6. What comes next? 6, 15, 24, 33, ____
7. What comes next? 6, 13, 20, 27, ____
8. What comes next? 13, 23, 33, 43, ____
9. What comes next? 15, 24, 33, 42, ____
10. What comes next? 4, 13, 22, 31, ____
11. What comes next? 8, 19, 30, 41, ____
12. What comes next? 12, 22, 32, 42, ____

12 questions · Seed 84 · 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? 3, 16, 29, 42, ____
55
Add 13 each time.
3. What comes next? 17, 22, 27, 32, ____
37
Add 5 each time.
4. What comes next? 16, 22, 28, 34, ____
40
Add 6 each time.
5. What comes next? 20, 34, 48, 62, ____
76
Add 14 each time.
6. What comes next? 6, 15, 24, 33, ____
42
Add 9 each time.
7. What comes next? 6, 13, 20, 27, ____
34
Add 7 each time.
8. What comes next? 13, 23, 33, 43, ____
53
Add 10 each time.
9. What comes next? 15, 24, 33, 42, ____
51
Add 9 each time.
10. What comes next? 4, 13, 22, 31, ____
40
Add 9 each time.
11. What comes next? 8, 19, 30, 41, ____
52
Add 11 each time.
12. What comes next? 12, 22, 32, 42, ____
52
Add 10 each time.

12 questions · Seed 84 · 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? 3, 16, 29, 42, ____
3. What comes next? 17, 22, 27, 32, ____
4. What comes next? 16, 22, 28, 34, ____
5. What comes next? 20, 34, 48, 62, ____
6. What comes next? 6, 15, 24, 33, ____
7. What comes next? 6, 13, 20, 27, ____
8. What comes next? 13, 23, 33, 43, ____
9. What comes next? 15, 24, 33, 42, ____
10. What comes next? 4, 13, 22, 31, ____
11. What comes next? 8, 19, 30, 41, ____
12. What comes next? 12, 22, 32, 42, ____

12 questions · Seed 84 · 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? 3, 16, 29, 42, ____
55
Add 13 each time.
3. What comes next? 17, 22, 27, 32, ____
37
Add 5 each time.
4. What comes next? 16, 22, 28, 34, ____
40
Add 6 each time.
5. What comes next? 20, 34, 48, 62, ____
76
Add 14 each time.
6. What comes next? 6, 15, 24, 33, ____
42
Add 9 each time.
7. What comes next? 6, 13, 20, 27, ____
34
Add 7 each time.
8. What comes next? 13, 23, 33, 43, ____
53
Add 10 each time.
9. What comes next? 15, 24, 33, 42, ____
51
Add 9 each time.
10. What comes next? 4, 13, 22, 31, ____
40
Add 9 each time.
11. What comes next? 8, 19, 30, 41, ____
52
Add 11 each time.
12. What comes next? 12, 22, 32, 42, ____
52
Add 10 each time.

12 questions · Seed 84 · Age guidance, not curriculum certification