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Missing sequence terms
Use the constant step size between terms to find the missing middle number in a sequence. Review suitability for your learners before teaching.
Worksheet StudioPractice pack · Ages 4-6
Missing sequence terms
Take your time. Show your thinking.
1. Find the missing number in the sequence: 9, 14, ____, 24, 29.
2. Find the missing number in the sequence: 5, 7, ____, 11, 13.
3. Find the missing number in the sequence: 8, 9, ____, 11, 12.
4. Find the missing number in the sequence: 13, 18, ____, 28, 33.
5. Find the missing number in the sequence: 11, 13, ____, 17, 19.
6. Find the missing number in the sequence: 3, 4, ____, 6, 7.
7. Find the missing number in the sequence: 2, 7, ____, 17, 22.
8. Find the missing number in the sequence: 2, 3, ____, 5, 6.
9. Find the missing number in the sequence: 5, 6, ____, 8, 9.
10. Find the missing number in the sequence: 1, 3, ____, 7, 9.
11. Find the missing number in the sequence: 17, 22, ____, 32, 37.
12. Find the missing number in the sequence: 9, 11, ____, 15, 17.
12 questions · Seed 104744 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 4-6
Missing sequence terms
Answers and reasoning. Review before teaching.
1. Find the missing number in the sequence: 9, 14, ____, 24, 29.
19The sequence increases by 5 each step: 14 + 5 = 19.
2. Find the missing number in the sequence: 5, 7, ____, 11, 13.
9The sequence increases by 2 each step: 7 + 2 = 9.
3. Find the missing number in the sequence: 8, 9, ____, 11, 12.
10The sequence increases by 1 each step: 9 + 1 = 10.
4. Find the missing number in the sequence: 13, 18, ____, 28, 33.
23The sequence increases by 5 each step: 18 + 5 = 23.
5. Find the missing number in the sequence: 11, 13, ____, 17, 19.
15The sequence increases by 2 each step: 13 + 2 = 15.
6. Find the missing number in the sequence: 3, 4, ____, 6, 7.
5The sequence increases by 1 each step: 4 + 1 = 5.
7. Find the missing number in the sequence: 2, 7, ____, 17, 22.
12The sequence increases by 5 each step: 7 + 5 = 12.
8. Find the missing number in the sequence: 2, 3, ____, 5, 6.
4The sequence increases by 1 each step: 3 + 1 = 4.
9. Find the missing number in the sequence: 5, 6, ____, 8, 9.
7The sequence increases by 1 each step: 6 + 1 = 7.
10. Find the missing number in the sequence: 1, 3, ____, 7, 9.
5The sequence increases by 2 each step: 3 + 2 = 5.
11. Find the missing number in the sequence: 17, 22, ____, 32, 37.
27The sequence increases by 5 each step: 22 + 5 = 27.
12. Find the missing number in the sequence: 9, 11, ____, 15, 17.
13The sequence increases by 2 each step: 11 + 2 = 13.
12 questions · Seed 104744 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6
Missing sequence terms
Take your time. Show your thinking.
1. Find the missing number in the sequence: 9, 14, ____, 24, 29.
2. Find the missing number in the sequence: 5, 7, ____, 11, 13.
3. Find the missing number in the sequence: 8, 9, ____, 11, 12.
4. Find the missing number in the sequence: 13, 18, ____, 28, 33.
5. Find the missing number in the sequence: 11, 13, ____, 17, 19.
6. Find the missing number in the sequence: 3, 4, ____, 6, 7.
7. Find the missing number in the sequence: 2, 7, ____, 17, 22.
8. Find the missing number in the sequence: 2, 3, ____, 5, 6.
9. Find the missing number in the sequence: 5, 6, ____, 8, 9.
10. Find the missing number in the sequence: 1, 3, ____, 7, 9.
11. Find the missing number in the sequence: 17, 22, ____, 32, 37.
12. Find the missing number in the sequence: 9, 11, ____, 15, 17.
12 questions · Seed 104744 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6
Missing sequence terms
Answers and reasoning. Review before teaching.
1. Find the missing number in the sequence: 9, 14, ____, 24, 29.
19The sequence increases by 5 each step: 14 + 5 = 19.
2. Find the missing number in the sequence: 5, 7, ____, 11, 13.
9The sequence increases by 2 each step: 7 + 2 = 9.
3. Find the missing number in the sequence: 8, 9, ____, 11, 12.
10The sequence increases by 1 each step: 9 + 1 = 10.
4. Find the missing number in the sequence: 13, 18, ____, 28, 33.
23The sequence increases by 5 each step: 18 + 5 = 23.
5. Find the missing number in the sequence: 11, 13, ____, 17, 19.
15The sequence increases by 2 each step: 13 + 2 = 15.
6. Find the missing number in the sequence: 3, 4, ____, 6, 7.
5The sequence increases by 1 each step: 4 + 1 = 5.
7. Find the missing number in the sequence: 2, 7, ____, 17, 22.
12The sequence increases by 5 each step: 7 + 5 = 12.
8. Find the missing number in the sequence: 2, 3, ____, 5, 6.
4The sequence increases by 1 each step: 3 + 1 = 4.
9. Find the missing number in the sequence: 5, 6, ____, 8, 9.
7The sequence increases by 1 each step: 6 + 1 = 7.
10. Find the missing number in the sequence: 1, 3, ____, 7, 9.
5The sequence increases by 2 each step: 3 + 2 = 5.
11. Find the missing number in the sequence: 17, 22, ____, 32, 37.
27The sequence increases by 5 each step: 22 + 5 = 27.
12. Find the missing number in the sequence: 9, 11, ____, 15, 17.
13The sequence increases by 2 each step: 11 + 2 = 13.
12 questions · Seed 104744 · Age guidance, not curriculum certification