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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 65?

    1 · 65 · One more & one less

  2. 2. What number is 1 more than 75?

    1 m · 75 · One more & one less

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

    1 · 14 · One more & one less

  4. 4. What number is 1 more than 60?

    1 m · 60 · One more & one less

  5. 5. What number is 1 less than 20?

    1 · 20 · One more & one less

  6. 6. What number is 1 more than 45?

    1 m · 45 · One more & one less

  7. 7. What number is 1 less than 78?

    1 · 78 · One more & one less

  8. 8. What number is 1 less than 18?

    1 · 18 · One more & one less

  9. 9. What number is 1 less than 35?

    1 · 35 · One more & one less

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

    1 · 34 · One more & one less

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

    1 m · 74 · One more & one less

  12. 12. What number is 1 less than 75?

    1 · 75 · One more & one less
12 questions · Seed 45 · 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 65?

    64

    1 less than 65 is 65 − 1 = 64.

  2. 2. What number is 1 more than 75?

    76

    1 more than 75 is 75 + 1 = 76.

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

    13

    1 less than 14 is 14 − 1 = 13.

  4. 4. What number is 1 more than 60?

    61

    1 more than 60 is 60 + 1 = 61.

  5. 5. What number is 1 less than 20?

    19

    1 less than 20 is 20 − 1 = 19.

  6. 6. What number is 1 more than 45?

    46

    1 more than 45 is 45 + 1 = 46.

  7. 7. What number is 1 less than 78?

    77

    1 less than 78 is 78 − 1 = 77.

  8. 8. What number is 1 less than 18?

    17

    1 less than 18 is 18 − 1 = 17.

  9. 9. What number is 1 less than 35?

    34

    1 less than 35 is 35 − 1 = 34.

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

    33

    1 less than 34 is 34 − 1 = 33.

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

    75

    1 more than 74 is 74 + 1 = 75.

  12. 12. What number is 1 less than 75?

    74

    1 less than 75 is 75 − 1 = 74.

12 questions · Seed 45 · 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 65?

    1 · 65 · One more & one less

  2. 2. What number is 1 more than 75?

    1 m · 75 · One more & one less

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

    1 · 14 · One more & one less

  4. 4. What number is 1 more than 60?

    1 m · 60 · One more & one less

  5. 5. What number is 1 less than 20?

    1 · 20 · One more & one less

  6. 6. What number is 1 more than 45?

    1 m · 45 · One more & one less

  7. 7. What number is 1 less than 78?

    1 · 78 · One more & one less

  8. 8. What number is 1 less than 18?

    1 · 18 · One more & one less

  9. 9. What number is 1 less than 35?

    1 · 35 · One more & one less

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

    1 · 34 · One more & one less

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

    1 m · 74 · One more & one less

  12. 12. What number is 1 less than 75?

    1 · 75 · One more & one less
12 questions · Seed 45 · 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 65?

    64

    1 less than 65 is 65 − 1 = 64.

  2. 2. What number is 1 more than 75?

    76

    1 more than 75 is 75 + 1 = 76.

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

    13

    1 less than 14 is 14 − 1 = 13.

  4. 4. What number is 1 more than 60?

    61

    1 more than 60 is 60 + 1 = 61.

  5. 5. What number is 1 less than 20?

    19

    1 less than 20 is 20 − 1 = 19.

  6. 6. What number is 1 more than 45?

    46

    1 more than 45 is 45 + 1 = 46.

  7. 7. What number is 1 less than 78?

    77

    1 less than 78 is 78 − 1 = 77.

  8. 8. What number is 1 less than 18?

    17

    1 less than 18 is 18 − 1 = 17.

  9. 9. What number is 1 less than 35?

    34

    1 less than 35 is 35 − 1 = 34.

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

    33

    1 less than 34 is 34 − 1 = 33.

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

    75

    1 more than 74 is 74 + 1 = 75.

  12. 12. What number is 1 less than 75?

    74

    1 less than 75 is 75 − 1 = 74.

12 questions · Seed 45 · Age guidance, not curriculum certification