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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 733 · 40 sums
TalentJR

The method (Count on): Start with the bigger number. Count on the smaller number, one finger at a time. For a missing number (8 + ? = 15), count on from 8 up to 15, or take away: 15 − 8.

NameDateTime takenScore ___ / 40
  1. 1.? + 6 = 17
  2. 2.? + 4 = 7
  3. 3.1 + ? = 5
  4. 4.? + 8 = 16
  5. 5.18 + 2 =
  6. 6.4 + 1 =
  7. 7.11 + ? = 17
  8. 8.4 + 9 =
  9. 9.11 + 5 =
  10. 10.10 + 3 =
  11. 11.Vivaan has 10 crayons and gets 7 crayons more. How many crayons does Vivaan have now?
  12. 12.4 + 4 =
  13. 13.7 + 3 =
  14. 14.10 + 5 =
  15. 15.2 + 2 + 8 =
  16. 16.2 + 17 =
  17. 17.3 + 15 =
  18. 18.Joseph has 14 balloons and gets 2 balloons more. How many balloons does Joseph have now?
  19. 19.Vivaan has 14 balls and gets 2 balls more. How many balls does Vivaan have now?
  20. 20.15 + 2 =
  21. 21.Ishaan has 5 bananas and gets 7 bananas more. How many bananas does Ishaan have now?
  22. 22.Nisha has 8 bananas and gets 11 bananas more. How many bananas does Nisha have now?
  23. 23.7 + 2 + 5 =
  24. 24.? + 8 = 18
  25. 25.6 + 7 =
  26. 26.12 + 6 =
  27. 27.6 + ? = 11
  28. 28.6 + 3 + 2 =
  29. 29.4 + ? = 10
  30. 30.1 + 1 + 1 =
  31. 31.There are 4 red flowers and 14 white flowers. How many flowers are there in all?
  32. 32.1 + 3 + 4 =
  33. 33.Zoya has 14 flowers and gets 1 flower more. How many flowers does Zoya have now?
  34. 34.5 + 4 =
  35. 35.? + 7 = 9
  36. 36.There are 7 blue beads and 8 red beads. How many beads are there in all?
  37. 37.3 + 8 =
  38. 38.Farhan has 13 mangoes and gets 6 mangoes more. How many mangoes does Farhan have now?
  39. 39.Ishaan has 6 crayons and gets 11 crayons more. How many crayons does Ishaan have now?
  40. 40.Meera has 15 books and gets 2 books more. How many books does Meera have now?

Answer key

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

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