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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 334 · 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. 1.2 + 6 + 7 =
  2. 2.5 + 6 =
  3. 3.There are 2 white kites and 12 green kites. How many kites are there in all?
  4. 4.There are 11 red balls and 7 white balls. How many balls are there in all?
  5. 5.? + 7 = 8
  6. 6.Pooja has 13 mangoes and gets 7 mangoes more. How many mangoes does Pooja have now?
  7. 7.There are 2 white balloons and 6 green balloons. How many balloons are there in all?
  8. 8.4 + ? = 8
  9. 9.14 + ? = 18
  10. 10.There are 5 red kites and 13 blue kites. How many kites are there in all?
  11. 11.? + 2 = 3
  12. 12.Farhan has 6 pencils and gets 3 pencils more. How many pencils does Farhan have now?
  13. 13.Aarav has 6 kites and gets 10 kites more. How many kites does Aarav have now?
  14. 14.There are 8 pink balls and 2 blue balls. How many balls are there in all?
  15. 15.? + 3 = 16
  16. 16.3 + ? = 13
  17. 17.3 + 2 =
  18. 18.7 + 8 + 4 =
  19. 19.Pooja has 7 mangoes and gets 12 mangoes more. How many mangoes does Pooja have now?
  20. 20.15 + 4 =
  21. 21.3 + 2 + 5 =
  22. 22.8 + 1 + 2 =
  23. 23.? + 3 = 4
  24. 24.? + 3 = 8
  25. 25.? + 8 = 10
  26. 26.There are 6 yellow beads and 13 white beads. How many beads are there in all?
  27. 27.Rohan has 12 crayons and gets 1 crayon more. How many crayons does Rohan have now?
  28. 28.There are 3 white balloons and 13 red balloons. How many balloons are there in all?
  29. 29.18 + 1 =
  30. 30.5 + 1 + 12 =
  31. 31.There are 4 green balloons and 4 yellow balloons. How many balloons are there in all?
  32. 32.There are 8 pink crayons and 6 white crayons. How many crayons are there in all?
  33. 33.3 + 2 + 3 =
  34. 34.? + 1 = 11
  35. 35.There are 4 green balls and 15 pink balls. How many balls are there in all?
  36. 36.There are 6 yellow flowers and 7 blue flowers. How many flowers are there in all?
  37. 37.There are 2 yellow flowers and 7 pink flowers. How many flowers are there in all?
  38. 38.5 + 5 + 6 =
  39. 39.3 + ? = 12
  40. 40.? + 10 = 13

Answer key

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

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