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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 70?

    1 · 70 · One more & one less

  2. 2. What number is 1 less than 74?

    1 · 74 · One more & one less

  3. 3. What number is 1 more than 18?

    1 m · 18 · One more & one less

  4. 4. What number is 1 more than 83?

    1 m · 83 · One more & one less

  5. 5. What number is 1 less than 39?

    1 · 39 · One more & one less

  6. 6. What number is 1 less than 58?

    1 · 58 · One more & one less

  7. 7. What number is 1 more than 52?

    1 m · 52 · One more & one less

  8. 8. What number is 1 more than 23?

    1 m · 23 · One more & one less

  9. 9. What number is 1 less than 34?

    1 · 34 · One more & one less

  10. 10. What number is 1 more than 72?

    1 m · 72 · One more & one less

  11. 11. What number is 1 more than 79?

    1 m · 79 · One more & one less

  12. 12. What number is 1 more than 85?

    1 m · 85 · One more & one less
12 questions · Seed 48 · 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 70?

    69

    1 less than 70 is 70 − 1 = 69.

  2. 2. What number is 1 less than 74?

    73

    1 less than 74 is 74 − 1 = 73.

  3. 3. What number is 1 more than 18?

    19

    1 more than 18 is 18 + 1 = 19.

  4. 4. What number is 1 more than 83?

    84

    1 more than 83 is 83 + 1 = 84.

  5. 5. What number is 1 less than 39?

    38

    1 less than 39 is 39 − 1 = 38.

  6. 6. What number is 1 less than 58?

    57

    1 less than 58 is 58 − 1 = 57.

  7. 7. What number is 1 more than 52?

    53

    1 more than 52 is 52 + 1 = 53.

  8. 8. What number is 1 more than 23?

    24

    1 more than 23 is 23 + 1 = 24.

  9. 9. What number is 1 less than 34?

    33

    1 less than 34 is 34 − 1 = 33.

  10. 10. What number is 1 more than 72?

    73

    1 more than 72 is 72 + 1 = 73.

  11. 11. What number is 1 more than 79?

    80

    1 more than 79 is 79 + 1 = 80.

  12. 12. What number is 1 more than 85?

    86

    1 more than 85 is 85 + 1 = 86.

12 questions · Seed 48 · 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 70?

    1 · 70 · One more & one less

  2. 2. What number is 1 less than 74?

    1 · 74 · One more & one less

  3. 3. What number is 1 more than 18?

    1 m · 18 · One more & one less

  4. 4. What number is 1 more than 83?

    1 m · 83 · One more & one less

  5. 5. What number is 1 less than 39?

    1 · 39 · One more & one less

  6. 6. What number is 1 less than 58?

    1 · 58 · One more & one less

  7. 7. What number is 1 more than 52?

    1 m · 52 · One more & one less

  8. 8. What number is 1 more than 23?

    1 m · 23 · One more & one less

  9. 9. What number is 1 less than 34?

    1 · 34 · One more & one less

  10. 10. What number is 1 more than 72?

    1 m · 72 · One more & one less

  11. 11. What number is 1 more than 79?

    1 m · 79 · One more & one less

  12. 12. What number is 1 more than 85?

    1 m · 85 · One more & one less
12 questions · Seed 48 · 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 70?

    69

    1 less than 70 is 70 − 1 = 69.

  2. 2. What number is 1 less than 74?

    73

    1 less than 74 is 74 − 1 = 73.

  3. 3. What number is 1 more than 18?

    19

    1 more than 18 is 18 + 1 = 19.

  4. 4. What number is 1 more than 83?

    84

    1 more than 83 is 83 + 1 = 84.

  5. 5. What number is 1 less than 39?

    38

    1 less than 39 is 39 − 1 = 38.

  6. 6. What number is 1 less than 58?

    57

    1 less than 58 is 58 − 1 = 57.

  7. 7. What number is 1 more than 52?

    53

    1 more than 52 is 52 + 1 = 53.

  8. 8. What number is 1 more than 23?

    24

    1 more than 23 is 23 + 1 = 24.

  9. 9. What number is 1 less than 34?

    33

    1 less than 34 is 34 − 1 = 33.

  10. 10. What number is 1 more than 72?

    73

    1 more than 72 is 72 + 1 = 73.

  11. 11. What number is 1 more than 79?

    80

    1 more than 79 is 79 + 1 = 80.

  12. 12. What number is 1 more than 85?

    86

    1 more than 85 is 85 + 1 = 86.

12 questions · Seed 48 · Age guidance, not curriculum certification