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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? 13, 17, 21, 25, ____
2. What comes next? 15, 28, 41, 54, ____
3. What comes next? 9, 21, 33, 45, ____
4. What comes next? 8, 13, 18, 23, ____
5. What comes next? 20, 27, 34, 41, ____
6. What comes next? 19, 25, 31, 37, ____
7. What comes next? 10, 16, 22, 28, ____
8. What comes next? 5, 12, 19, 26, ____
9. What comes next? 11, 16, 21, 26, ____
10. What comes next? 2, 7, 12, 17, ____
11. What comes next? 4, 19, 34, 49, ____
12. What comes next? 18, 25, 32, 39, ____

12 questions · Seed 104 · 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? 13, 17, 21, 25, ____
29
Add 4 each time.
2. What comes next? 15, 28, 41, 54, ____
67
Add 13 each time.
3. What comes next? 9, 21, 33, 45, ____
57
Add 12 each time.
4. What comes next? 8, 13, 18, 23, ____
28
Add 5 each time.
5. What comes next? 20, 27, 34, 41, ____
48
Add 7 each time.
6. What comes next? 19, 25, 31, 37, ____
43
Add 6 each time.
7. What comes next? 10, 16, 22, 28, ____
34
Add 6 each time.
8. What comes next? 5, 12, 19, 26, ____
33
Add 7 each time.
9. What comes next? 11, 16, 21, 26, ____
31
Add 5 each time.
10. What comes next? 2, 7, 12, 17, ____
22
Add 5 each time.
11. What comes next? 4, 19, 34, 49, ____
64
Add 15 each time.
12. What comes next? 18, 25, 32, 39, ____
46
Add 7 each time.

12 questions · Seed 104 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 13, 17, 21, 25, ____
2. What comes next? 15, 28, 41, 54, ____
3. What comes next? 9, 21, 33, 45, ____
4. What comes next? 8, 13, 18, 23, ____
5. What comes next? 20, 27, 34, 41, ____
6. What comes next? 19, 25, 31, 37, ____
7. What comes next? 10, 16, 22, 28, ____
8. What comes next? 5, 12, 19, 26, ____
9. What comes next? 11, 16, 21, 26, ____
10. What comes next? 2, 7, 12, 17, ____
11. What comes next? 4, 19, 34, 49, ____
12. What comes next? 18, 25, 32, 39, ____

12 questions · Seed 104 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 13, 17, 21, 25, ____
29
Add 4 each time.
2. What comes next? 15, 28, 41, 54, ____
67
Add 13 each time.
3. What comes next? 9, 21, 33, 45, ____
57
Add 12 each time.
4. What comes next? 8, 13, 18, 23, ____
28
Add 5 each time.
5. What comes next? 20, 27, 34, 41, ____
48
Add 7 each time.
6. What comes next? 19, 25, 31, 37, ____
43
Add 6 each time.
7. What comes next? 10, 16, 22, 28, ____
34
Add 6 each time.
8. What comes next? 5, 12, 19, 26, ____
33
Add 7 each time.
9. What comes next? 11, 16, 21, 26, ____
31
Add 5 each time.
10. What comes next? 2, 7, 12, 17, ____
22
Add 5 each time.
11. What comes next? 4, 19, 34, 49, ____
64
Add 15 each time.
12. What comes next? 18, 25, 32, 39, ____
46
Add 7 each time.

12 questions · Seed 104 · Age guidance, not curriculum certification