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MathsAges 7-9

One more & one less

Find the number that is 1, 2 or 10 more or less than a given whole number. Review suitability for your learners before teaching.

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Age band:Ages 4-6Ages 7-9

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Worksheet StudioPractice pack · Ages 7-9

One more & one less

Take your time. Show your thinking.

  1. 1. What number is 1 less than 14?

    1 · 14 · One more & one less

  2. 2. What number is 1 less than 63?

    1 · 63 · One more & one less

  3. 3. What number is 1 less than 22?

    1 · 22 · One more & one less

  4. 4. What number is 1 less than 23?

    1 · 23 · One more & one less

  5. 5. What number is 1 more than 36?

    1 m · 36 · One more & one less

  6. 6. What number is 1 less than 64?

    1 · 64 · One more & one less

  7. 7. What number is 1 less than 42?

    1 · 42 · One more & one less

  8. 8. What number is 1 more than 49?

    1 m · 49 · One more & one less

  9. 9. What number is 1 less than 69?

    1 · 69 · One more & one less

  10. 10. What number is 1 more than 28?

    1 m · 28 · One more & one less

  11. 11. What number is 1 less than 71?

    1 · 71 · One more & one less

  12. 12. What number is 1 less than 93?

    1 · 93 · One more & one less
12 questions · Seed 55 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9

One more & one less

Answers and reasoning. Review before teaching.

  1. 1. What number is 1 less than 14?

    13

    1 less than 14 is 14 − 1 = 13.

  2. 2. What number is 1 less than 63?

    62

    1 less than 63 is 63 − 1 = 62.

  3. 3. What number is 1 less than 22?

    21

    1 less than 22 is 22 − 1 = 21.

  4. 4. What number is 1 less than 23?

    22

    1 less than 23 is 23 − 1 = 22.

  5. 5. What number is 1 more than 36?

    37

    1 more than 36 is 36 + 1 = 37.

  6. 6. What number is 1 less than 64?

    63

    1 less than 64 is 64 − 1 = 63.

  7. 7. What number is 1 less than 42?

    41

    1 less than 42 is 42 − 1 = 41.

  8. 8. What number is 1 more than 49?

    50

    1 more than 49 is 49 + 1 = 50.

  9. 9. What number is 1 less than 69?

    68

    1 less than 69 is 69 − 1 = 68.

  10. 10. What number is 1 more than 28?

    29

    1 more than 28 is 28 + 1 = 29.

  11. 11. What number is 1 less than 71?

    70

    1 less than 71 is 71 − 1 = 70.

  12. 12. What number is 1 less than 93?

    92

    1 less than 93 is 93 − 1 = 92.

12 questions · Seed 55 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

One more & one less

Take your time. Show your thinking.

  1. 1. What number is 1 less than 14?

    1 · 14 · One more & one less

  2. 2. What number is 1 less than 63?

    1 · 63 · One more & one less

  3. 3. What number is 1 less than 22?

    1 · 22 · One more & one less

  4. 4. What number is 1 less than 23?

    1 · 23 · One more & one less

  5. 5. What number is 1 more than 36?

    1 m · 36 · One more & one less

  6. 6. What number is 1 less than 64?

    1 · 64 · One more & one less

  7. 7. What number is 1 less than 42?

    1 · 42 · One more & one less

  8. 8. What number is 1 more than 49?

    1 m · 49 · One more & one less

  9. 9. What number is 1 less than 69?

    1 · 69 · One more & one less

  10. 10. What number is 1 more than 28?

    1 m · 28 · One more & one less

  11. 11. What number is 1 less than 71?

    1 · 71 · One more & one less

  12. 12. What number is 1 less than 93?

    1 · 93 · One more & one less
12 questions · Seed 55 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

One more & one less

Answers and reasoning. Review before teaching.

  1. 1. What number is 1 less than 14?

    13

    1 less than 14 is 14 − 1 = 13.

  2. 2. What number is 1 less than 63?

    62

    1 less than 63 is 63 − 1 = 62.

  3. 3. What number is 1 less than 22?

    21

    1 less than 22 is 22 − 1 = 21.

  4. 4. What number is 1 less than 23?

    22

    1 less than 23 is 23 − 1 = 22.

  5. 5. What number is 1 more than 36?

    37

    1 more than 36 is 36 + 1 = 37.

  6. 6. What number is 1 less than 64?

    63

    1 less than 64 is 64 − 1 = 63.

  7. 7. What number is 1 less than 42?

    41

    1 less than 42 is 42 − 1 = 41.

  8. 8. What number is 1 more than 49?

    50

    1 more than 49 is 49 + 1 = 50.

  9. 9. What number is 1 less than 69?

    68

    1 less than 69 is 69 − 1 = 68.

  10. 10. What number is 1 more than 28?

    29

    1 more than 28 is 28 + 1 = 29.

  11. 11. What number is 1 less than 71?

    70

    1 less than 71 is 71 − 1 = 70.

  12. 12. What number is 1 less than 93?

    92

    1 less than 93 is 93 − 1 = 92.

12 questions · Seed 55 · Age guidance, not curriculum certification