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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 637 · 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.Gurpreet has 12 kites and gets 4 kites more. How many kites does Gurpreet have now?
  2. 2.There are 4 yellow crayons and 16 green crayons. How many crayons are there in all?
  3. 3.There are 10 white crayons and 10 blue crayons. How many crayons are there in all?
  4. 4.5 + 5 + 6 =
  5. 5.8 + 12 =
  6. 6.12 + 1 =
  7. 7.Zoya has 15 flowers and gets 2 flowers more. How many flowers does Zoya have now?
  8. 8.6 + ? = 13
  9. 9.4 + ? = 5
  10. 10.There are 5 pink kites and 11 green kites. How many kites are there in all?
  11. 11.8 + 6 + 2 =
  12. 12.? + 4 = 12
  13. 13.8 + 6 =
  14. 14.8 + 3 + 6 =
  15. 15.There are 5 pink balloons and 13 green balloons. How many balloons are there in all?
  16. 16.3 + 7 + 7 =
  17. 17.There are 12 green flowers and 5 pink flowers. How many flowers are there in all?
  18. 18.1 + 3 + 5 =
  19. 19.Pooja has 13 kites and gets 6 kites more. How many kites does Pooja have now?
  20. 20.There are 6 green balloons and 3 yellow balloons. How many balloons are there in all?
  21. 21.There are 9 red balloons and 9 yellow balloons. How many balloons are there in all?
  22. 22.10 + 4 =
  23. 23.14 + 3 =
  24. 24.2 + 6 + 12 =
  25. 25.7 + 1 =
  26. 26.Riya has 12 mangoes and gets 5 mangoes more. How many mangoes does Riya have now?
  27. 27.There are 10 yellow beads and 4 green beads. How many beads are there in all?
  28. 28.Isha has 4 mangoes and gets 6 mangoes more. How many mangoes does Isha have now?
  29. 29.5 + 2 =
  30. 30.4 + 5 + 3 =
  31. 31.7 + 6 + 6 =
  32. 32.Rohan has 15 shells and gets 1 shell more. How many shells does Rohan have now?
  33. 33.? + 6 = 7
  34. 34.? + 13 = 20
  35. 35.There are 7 pink kites and 7 blue kites. How many kites are there in all?
  36. 36.? + 1 = 18
  37. 37.? + 2 = 8
  38. 38.3 + 7 + 4 =
  39. 39.7 + 2 + 11 =
  40. 40.4 + 9 =

Answer key

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

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