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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, 20, 31, 42, ____
2. What comes next? 16, 30, 44, 58, ____
3. What comes next? 1, 15, 29, 43, ____
4. What comes next? 17, 27, 37, 47, ____
5. What comes next? 9, 21, 33, 45, ____
6. What comes next? 8, 17, 26, 35, ____
7. What comes next? 8, 18, 28, 38, ____
8. What comes next? 14, 20, 26, 32, ____
9. What comes next? 19, 27, 35, 43, ____
10. What comes next? 18, 29, 40, 51, ____
11. What comes next? 1, 9, 17, 25, ____
12. What comes next? 5, 10, 15, 20, ____

12 questions · Seed 120 · 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, 20, 31, 42, ____
53
Add 11 each time.
2. What comes next? 16, 30, 44, 58, ____
72
Add 14 each time.
3. What comes next? 1, 15, 29, 43, ____
57
Add 14 each time.
4. What comes next? 17, 27, 37, 47, ____
57
Add 10 each time.
5. What comes next? 9, 21, 33, 45, ____
57
Add 12 each time.
6. What comes next? 8, 17, 26, 35, ____
44
Add 9 each time.
7. What comes next? 8, 18, 28, 38, ____
48
Add 10 each time.
8. What comes next? 14, 20, 26, 32, ____
38
Add 6 each time.
9. What comes next? 19, 27, 35, 43, ____
51
Add 8 each time.
10. What comes next? 18, 29, 40, 51, ____
62
Add 11 each time.
11. What comes next? 1, 9, 17, 25, ____
33
Add 8 each time.
12. What comes next? 5, 10, 15, 20, ____
25
Add 5 each time.

12 questions · Seed 120 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 9, 20, 31, 42, ____
2. What comes next? 16, 30, 44, 58, ____
3. What comes next? 1, 15, 29, 43, ____
4. What comes next? 17, 27, 37, 47, ____
5. What comes next? 9, 21, 33, 45, ____
6. What comes next? 8, 17, 26, 35, ____
7. What comes next? 8, 18, 28, 38, ____
8. What comes next? 14, 20, 26, 32, ____
9. What comes next? 19, 27, 35, 43, ____
10. What comes next? 18, 29, 40, 51, ____
11. What comes next? 1, 9, 17, 25, ____
12. What comes next? 5, 10, 15, 20, ____

12 questions · Seed 120 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 9, 20, 31, 42, ____
53
Add 11 each time.
2. What comes next? 16, 30, 44, 58, ____
72
Add 14 each time.
3. What comes next? 1, 15, 29, 43, ____
57
Add 14 each time.
4. What comes next? 17, 27, 37, 47, ____
57
Add 10 each time.
5. What comes next? 9, 21, 33, 45, ____
57
Add 12 each time.
6. What comes next? 8, 17, 26, 35, ____
44
Add 9 each time.
7. What comes next? 8, 18, 28, 38, ____
48
Add 10 each time.
8. What comes next? 14, 20, 26, 32, ____
38
Add 6 each time.
9. What comes next? 19, 27, 35, 43, ____
51
Add 8 each time.
10. What comes next? 18, 29, 40, 51, ____
62
Add 11 each time.
11. What comes next? 1, 9, 17, 25, ____
33
Add 8 each time.
12. What comes next? 5, 10, 15, 20, ____
25
Add 5 each time.

12 questions · Seed 120 · Age guidance, not curriculum certification