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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 781 · 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 green kites and 13 white kites. How many kites are there in all?
  2. 2.There are 4 green beads and 12 yellow beads. How many beads are there in all?
  3. 3.15 + ? = 16
  4. 4.7 + 9 =
  5. 5.Nisha has 3 crayons and gets 13 crayons more. How many crayons does Nisha have now?
  6. 6.6 + 4 + 9 =
  7. 7.6 + 6 + 4 =
  8. 8.4 + 12 =
  9. 9.19 + 1 =
  10. 10.9 + 7 =
  11. 11.12 + 4 =
  12. 12.5 + 2 =
  13. 13.2 + 16 =
  14. 14.There are 4 blue balloons and 9 red balloons. How many balloons are there in all?
  15. 15.There are 10 yellow balls and 3 pink balls. How many balls are there in all?
  16. 16.2 + 5 =
  17. 17.? + 3 = 16
  18. 18.4 + 8 + 7 =
  19. 19.Sneha has 3 bananas and gets 2 bananas more. How many bananas does Sneha have now?
  20. 20.? + 2 = 12
  21. 21.1 + 8 + 8 =
  22. 22.7 + 7 + 3 =
  23. 23.There are 12 pink kites and 6 blue kites. How many kites are there in all?
  24. 24.There are 7 red kites and 13 white kites. How many kites are there in all?
  25. 25.There are 6 yellow balloons and 3 green balloons. How many balloons are there in all?
  26. 26.There are 12 blue flowers and 3 red flowers. How many flowers are there in all?
  27. 27.2 + 5 + 12 =
  28. 28.? + 5 = 6
  29. 29.Rohan has 3 mangoes and gets 15 mangoes more. How many mangoes does Rohan have now?
  30. 30.1 + 7 =
  31. 31.5 + 5 =
  32. 32.Aditya has 2 books and gets 7 books more. How many books does Aditya have now?
  33. 33.2 + ? = 7
  34. 34.Rohan has 12 bananas and gets 1 banana more. How many bananas does Rohan have now?
  35. 35.There are 6 green balls and 14 blue balls. How many balls are there in all?
  36. 36.1 + 5 + 11 =
  37. 37.There are 9 pink balloons and 10 white balloons. How many balloons are there in all?
  38. 38.Riya has 9 flowers and gets 10 flowers more. How many flowers does Riya have now?
  39. 39.1 + ? = 3
  40. 40.11 + 2 =

Answer key

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

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