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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 296 · 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.There are 4 red crayons and 4 blue crayons. How many crayons are there in all?
  2. 2.1 + 2 + 14 =
  3. 3.2 + 3 + 4 =
  4. 4.Zoya has 15 laddoos and gets 2 laddoos more. How many laddoos does Zoya have now?
  5. 5.There are 10 yellow kites and 4 white kites. How many kites are there in all?
  6. 6.1 + 12 =
  7. 7.10 + 3 =
  8. 8.2 + 4 + 6 =
  9. 9.14 + 1 =
  10. 10.12 + 7 =
  11. 11.4 + 6 + 1 =
  12. 12.? + 1 = 5
  13. 13.11 + 9 =
  14. 14.1 + 6 + 8 =
  15. 15.8 + 5 =
  16. 16.? + 9 = 11
  17. 17.There are 2 red balls and 6 yellow balls. How many balls are there in all?
  18. 18.Dev has 4 balloons and gets 4 balloons more. How many balloons does Dev have now?
  19. 19.3 + 2 =
  20. 20.3 + 1 + 5 =
  21. 21.4 + 4 + 2 =
  22. 22.Kabir has 15 laddoos and gets 1 laddoo more. How many laddoos does Kabir have now?
  23. 23.Karan has 8 pencils and gets 3 pencils more. How many pencils does Karan have now?
  24. 24.Zoya has 13 pencils and gets 2 pencils more. How many pencils does Zoya have now?
  25. 25.14 + 2 =
  26. 26.4 + ? = 13
  27. 27.There are 8 red crayons and 10 pink crayons. How many crayons are there in all?
  28. 28.Joseph has 6 balls and gets 5 balls more. How many balls does Joseph have now?
  29. 29.Vivaan has 5 mangoes and gets 3 mangoes more. How many mangoes does Vivaan have now?
  30. 30.Joseph has 4 flowers and gets 9 flowers more. How many flowers does Joseph have now?
  31. 31.Vivaan has 8 marbles and gets 3 marbles more. How many marbles does Vivaan have now?
  32. 32.3 + 6 =
  33. 33.? + 3 = 4
  34. 34.? + 4 = 6
  35. 35.4 + 2 + 9 =
  36. 36.There are 5 white balloons and 14 yellow balloons. How many balloons are there in all?
  37. 37.3 + 4 + 5 =
  38. 38.Zoya has 9 balls and gets 11 balls more. How many balls does Zoya have now?
  39. 39.There are 7 white flowers and 2 pink flowers. How many flowers are there in all?
  40. 40.There are 2 green balloons and 5 red balloons. How many balloons are there in all?

Answer key

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

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