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Class 1 Maths Worksheet: Subtraction

Maths worksheets lesson 4: Subtraction up to 20 · Set 253 · 40 sums
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The method (Count back): Start at the bigger number. Count back the number you take away. How many more or how many left = bigger number − smaller number. Check by adding back: answer + number taken away = the first number.

NameDateTime takenScore ___ / 40
  1. 1.20 − ? = 16
  2. 2.Arjun had 20 mangoes and gave 2 to a friend. How many mangoes does Arjun have left?
  3. 3.What is 1 less than 4?
  4. 4.4 − 2 =
  5. 5.15 − 14 =
  6. 6.18 − 12 =
  7. 7.19 − ? = 8
  8. 8.6 − 5 =
  9. 9.Kavya had 15 marbles and gave 4 to a friend. How many marbles does Kavya have left?
  10. 10.What is 13 less than 19?
  11. 11.There are 6 pencils and 3 erasers. How many more pencils than erasers are there?
  12. 12.Aarav had 18 balls and gave 3 to a friend. How many balls does Aarav have left?
  13. 13.Diya had 16 crayons and gave 15 to a friend. How many crayons does Diya have left?
  14. 14.16 − 7 =
  15. 15.What is 10 less than 12?
  16. 16.19 − 1 =
  17. 17.12 − 1 =
  18. 18.? − 7 = 7
  19. 19.? − 15 = 5
  20. 20.5 − 2 =
  21. 21.Manav had 8 marbles and gave 6 to a friend. How many marbles does Manav have left?
  22. 22.There are 10 birds and 5 nests. How many more birds than nests are there?
  23. 23.What is 4 less than 5?
  24. 24.10 − 6 =
  25. 25.There are 14 pencils and 6 erasers. How many more pencils than erasers are there?
  26. 26.20 − 9 =
  27. 27.What is 14 less than 16?
  28. 28.Aditya had 6 mangoes and gave 1 to a friend. How many mangoes does Aditya have left?
  29. 29.What is 7 less than 16?
  30. 30.What is 19 less than 20?
  31. 31.What is 1 less than 2?
  32. 32.14 − 1 =
  33. 33.5 − 1 =
  34. 34.14 − 11 =
  35. 35.3 − ? = 1
  36. 36.There are 3 birds and 2 nests. How many more birds than nests are there?
  37. 37.13 − 12 =
  38. 38.There are 8 birds and 3 nests. How many more birds than nests are there?
  39. 39.Ananya had 7 balloons and gave 4 to a friend. How many balloons does Ananya have left?
  40. 40.7 − 5 =

Answer key

  1. 4
  2. 18
  3. 3
  4. 2
  5. 1
  6. 6
  7. 11
  8. 1
  9. 11
  10. 6
  11. 3
  12. 15
  13. 1
  14. 9
  15. 2
  16. 18
  17. 11
  18. 14
  19. 20
  20. 3
  21. 2
  22. 5
  23. 1
  24. 4
  25. 8
  26. 11
  27. 2
  28. 5
  29. 9
  30. 1
  31. 1
  32. 13
  33. 4
  34. 3
  35. 2
  36. 1
  37. 1
  38. 5
  39. 3
  40. 2

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