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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 980 · 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 5 pink crayons and 15 yellow crayons. How many crayons are there in all?
  2. 2.There are 8 yellow flowers and 3 pink flowers. How many flowers are there in all?
  3. 3.2 + ? = 19
  4. 4.1 + ? = 5
  5. 5.7 + 2 =
  6. 6.There are 9 red crayons and 6 blue crayons. How many crayons are there in all?
  7. 7.2 + 1 =
  8. 8.9 + 1 =
  9. 9.There are 3 pink flowers and 5 white flowers. How many flowers are there in all?
  10. 10.9 + ? = 11
  11. 11.? + 1 = 4
  12. 12.There are 3 yellow balloons and 3 blue balloons. How many balloons are there in all?
  13. 13.3 + 5 =
  14. 14.There are 3 pink flowers and 8 red flowers. How many flowers are there in all?
  15. 15.Isha has 3 crayons and gets 7 crayons more. How many crayons does Isha have now?
  16. 16.There are 4 red balloons and 6 green balloons. How many balloons are there in all?
  17. 17.8 + 5 =
  18. 18.16 + 4 =
  19. 19.14 + 3 =
  20. 20.6 + 2 + 5 =
  21. 21.19 + 1 =
  22. 22.17 + 1 =
  23. 23.Ishaan has 9 flowers and gets 7 flowers more. How many flowers does Ishaan have now?
  24. 24.Ananya has 14 balls and gets 6 balls more. How many balls does Ananya have now?
  25. 25.1 + 13 =
  26. 26.? + 3 = 15
  27. 27.There are 11 yellow crayons and 6 red crayons. How many crayons are there in all?
  28. 28.? + 5 = 10
  29. 29.1 + ? = 3
  30. 30.Gurpreet has 15 pencils and gets 1 pencil more. How many pencils does Gurpreet have now?
  31. 31.There are 6 white beads and 5 red beads. How many beads are there in all?
  32. 32.There are 7 yellow flowers and 2 green flowers. How many flowers are there in all?
  33. 33.9 + ? = 15
  34. 34.There are 7 yellow balloons and 11 blue balloons. How many balloons are there in all?
  35. 35.Manav has 2 balloons and gets 7 balloons more. How many balloons does Manav have now?
  36. 36.Meera has 7 balls and gets 1 ball more. How many balls does Meera have now?
  37. 37.5 + 14 =
  38. 38.Ishaan has 14 bananas and gets 2 bananas more. How many bananas does Ishaan have now?
  39. 39.There are 7 red crayons and 3 blue crayons. How many crayons are there in all?
  40. 40.There are 4 pink flowers and 16 red flowers. How many flowers are there in all?

Answer key

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

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