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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 28?

    1 · 28 · One more & one less

  2. 2. What number is 1 more than 87?

    1 m · 87 · One more & one less

  3. 3. What number is 1 less than 15?

    1 · 15 · One more & one less

  4. 4. What number is 1 more than 54?

    1 m · 54 · One more & one less

  5. 5. What number is 1 less than 26?

    1 · 26 · One more & one less

  6. 6. What number is 1 more than 84?

    1 m · 84 · One more & one less

  7. 7. What number is 1 more than 68?

    1 m · 68 · One more & one less

  8. 8. What number is 1 more than 76?

    1 m · 76 · One more & one less

  9. 9. What number is 1 less than 51?

    1 · 51 · One more & one less

  10. 10. What number is 1 less than 83?

    1 · 83 · One more & one less

  11. 11. What number is 1 less than 72?

    1 · 72 · One more & one less

  12. 12. What number is 1 more than 74?

    1 m · 74 · One more & one less
12 questions · Seed 54 · 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 28?

    27

    1 less than 28 is 28 − 1 = 27.

  2. 2. What number is 1 more than 87?

    88

    1 more than 87 is 87 + 1 = 88.

  3. 3. What number is 1 less than 15?

    14

    1 less than 15 is 15 − 1 = 14.

  4. 4. What number is 1 more than 54?

    55

    1 more than 54 is 54 + 1 = 55.

  5. 5. What number is 1 less than 26?

    25

    1 less than 26 is 26 − 1 = 25.

  6. 6. What number is 1 more than 84?

    85

    1 more than 84 is 84 + 1 = 85.

  7. 7. What number is 1 more than 68?

    69

    1 more than 68 is 68 + 1 = 69.

  8. 8. What number is 1 more than 76?

    77

    1 more than 76 is 76 + 1 = 77.

  9. 9. What number is 1 less than 51?

    50

    1 less than 51 is 51 − 1 = 50.

  10. 10. What number is 1 less than 83?

    82

    1 less than 83 is 83 − 1 = 82.

  11. 11. What number is 1 less than 72?

    71

    1 less than 72 is 72 − 1 = 71.

  12. 12. What number is 1 more than 74?

    75

    1 more than 74 is 74 + 1 = 75.

12 questions · Seed 54 · 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 28?

    1 · 28 · One more & one less

  2. 2. What number is 1 more than 87?

    1 m · 87 · One more & one less

  3. 3. What number is 1 less than 15?

    1 · 15 · One more & one less

  4. 4. What number is 1 more than 54?

    1 m · 54 · One more & one less

  5. 5. What number is 1 less than 26?

    1 · 26 · One more & one less

  6. 6. What number is 1 more than 84?

    1 m · 84 · One more & one less

  7. 7. What number is 1 more than 68?

    1 m · 68 · One more & one less

  8. 8. What number is 1 more than 76?

    1 m · 76 · One more & one less

  9. 9. What number is 1 less than 51?

    1 · 51 · One more & one less

  10. 10. What number is 1 less than 83?

    1 · 83 · One more & one less

  11. 11. What number is 1 less than 72?

    1 · 72 · One more & one less

  12. 12. What number is 1 more than 74?

    1 m · 74 · One more & one less
12 questions · Seed 54 · 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 28?

    27

    1 less than 28 is 28 − 1 = 27.

  2. 2. What number is 1 more than 87?

    88

    1 more than 87 is 87 + 1 = 88.

  3. 3. What number is 1 less than 15?

    14

    1 less than 15 is 15 − 1 = 14.

  4. 4. What number is 1 more than 54?

    55

    1 more than 54 is 54 + 1 = 55.

  5. 5. What number is 1 less than 26?

    25

    1 less than 26 is 26 − 1 = 25.

  6. 6. What number is 1 more than 84?

    85

    1 more than 84 is 84 + 1 = 85.

  7. 7. What number is 1 more than 68?

    69

    1 more than 68 is 68 + 1 = 69.

  8. 8. What number is 1 more than 76?

    77

    1 more than 76 is 76 + 1 = 77.

  9. 9. What number is 1 less than 51?

    50

    1 less than 51 is 51 − 1 = 50.

  10. 10. What number is 1 less than 83?

    82

    1 less than 83 is 83 − 1 = 82.

  11. 11. What number is 1 less than 72?

    71

    1 less than 72 is 72 − 1 = 71.

  12. 12. What number is 1 more than 74?

    75

    1 more than 74 is 74 + 1 = 75.

12 questions · Seed 54 · Age guidance, not curriculum certification