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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? 18, 28, 38, 48, ____
2. What comes next? 8, 18, 28, 38, ____
3. What comes next? 10, 23, 36, 49, ____
4. What comes next? 10, 14, 18, 22, ____
5. What comes next? 2, 7, 12, 17, ____
6. What comes next? 18, 31, 44, 57, ____
7. What comes next? 14, 27, 40, 53, ____
8. What comes next? 3, 11, 19, 27, ____
9. What comes next? 5, 11, 17, 23, ____
10. What comes next? 13, 27, 41, 55, ____
11. What comes next? 10, 19, 28, 37, ____
12. What comes next? 6, 10, 14, 18, ____

12 questions · Seed 99 · 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? 18, 28, 38, 48, ____
58
Add 10 each time.
2. What comes next? 8, 18, 28, 38, ____
48
Add 10 each time.
3. What comes next? 10, 23, 36, 49, ____
62
Add 13 each time.
4. What comes next? 10, 14, 18, 22, ____
26
Add 4 each time.
5. What comes next? 2, 7, 12, 17, ____
22
Add 5 each time.
6. What comes next? 18, 31, 44, 57, ____
70
Add 13 each time.
7. What comes next? 14, 27, 40, 53, ____
66
Add 13 each time.
8. What comes next? 3, 11, 19, 27, ____
35
Add 8 each time.
9. What comes next? 5, 11, 17, 23, ____
29
Add 6 each time.
10. What comes next? 13, 27, 41, 55, ____
69
Add 14 each time.
11. What comes next? 10, 19, 28, 37, ____
46
Add 9 each time.
12. What comes next? 6, 10, 14, 18, ____
22
Add 4 each time.

12 questions · Seed 99 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Number patterns

Take your time. Show your thinking.

1. What comes next? 18, 28, 38, 48, ____
2. What comes next? 8, 18, 28, 38, ____
3. What comes next? 10, 23, 36, 49, ____
4. What comes next? 10, 14, 18, 22, ____
5. What comes next? 2, 7, 12, 17, ____
6. What comes next? 18, 31, 44, 57, ____
7. What comes next? 14, 27, 40, 53, ____
8. What comes next? 3, 11, 19, 27, ____
9. What comes next? 5, 11, 17, 23, ____
10. What comes next? 13, 27, 41, 55, ____
11. What comes next? 10, 19, 28, 37, ____
12. What comes next? 6, 10, 14, 18, ____

12 questions · Seed 99 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Number patterns

Answers and reasoning. Review before teaching.

1. What comes next? 18, 28, 38, 48, ____
58
Add 10 each time.
2. What comes next? 8, 18, 28, 38, ____
48
Add 10 each time.
3. What comes next? 10, 23, 36, 49, ____
62
Add 13 each time.
4. What comes next? 10, 14, 18, 22, ____
26
Add 4 each time.
5. What comes next? 2, 7, 12, 17, ____
22
Add 5 each time.
6. What comes next? 18, 31, 44, 57, ____
70
Add 13 each time.
7. What comes next? 14, 27, 40, 53, ____
66
Add 13 each time.
8. What comes next? 3, 11, 19, 27, ____
35
Add 8 each time.
9. What comes next? 5, 11, 17, 23, ____
29
Add 6 each time.
10. What comes next? 13, 27, 41, 55, ____
69
Add 14 each time.
11. What comes next? 10, 19, 28, 37, ____
46
Add 9 each time.
12. What comes next? 6, 10, 14, 18, ____
22
Add 4 each time.

12 questions · Seed 99 · Age guidance, not curriculum certification