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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 691 · 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.Saanvi has 15 balls and gets 1 ball more. How many balls does Saanvi have now?
  2. 2.18 + 2 =
  3. 3.Kavya has 8 balloons and gets 11 balloons more. How many balloons does Kavya have now?
  4. 4.Nisha has 14 shells and gets 5 shells more. How many shells does Nisha have now?
  5. 5.18 + 1 =
  6. 6.3 + 4 + 1 =
  7. 7.3 + 8 + 5 =
  8. 8.11 + 2 =
  9. 9.There are 2 red balloons and 7 green balloons. How many balloons are there in all?
  10. 10.12 + 8 =
  11. 11.4 + 8 + 2 =
  12. 12.There are 12 green crayons and 2 red crayons. How many crayons are there in all?
  13. 13.? + 6 = 19
  14. 14.There are 9 green balloons and 6 white balloons. How many balloons are there in all?
  15. 15.There are 2 pink flowers and 15 white flowers. How many flowers are there in all?
  16. 16.There are 9 white crayons and 5 green crayons. How many crayons are there in all?
  17. 17.4 + 2 + 9 =
  18. 18.3 + 6 + 1 =
  19. 19.2 + 16 =
  20. 20.? + 3 = 11
  21. 21.Diya has 15 crayons and gets 5 crayons more. How many crayons does Diya have now?
  22. 22.2 + 3 + 10 =
  23. 23.14 + 4 =
  24. 24.19 + 1 =
  25. 25.1 + 13 =
  26. 26.10 + 3 =
  27. 27.? + 14 = 18
  28. 28.1 + 18 =
  29. 29.Ananya has 15 balls and gets 5 balls more. How many balls does Ananya have now?
  30. 30.Priya has 11 books and gets 5 books more. How many books does Priya have now?
  31. 31.Lakshmi has 15 books and gets 5 books more. How many books does Lakshmi have now?
  32. 32.? + 3 = 5
  33. 33.3 + ? = 8
  34. 34.6 + 7 + 7 =
  35. 35.There are 2 yellow flowers and 8 green flowers. How many flowers are there in all?
  36. 36.There are 6 pink beads and 10 blue beads. How many beads are there in all?
  37. 37.? + 1 = 4
  38. 38.15 + ? = 19
  39. 39.Pooja has 5 marbles and gets 13 marbles more. How many marbles does Pooja have now?
  40. 40.Vivaan has 5 balls and gets 4 balls more. How many balls does Vivaan have now?

Answer key

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

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