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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 288 · 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 pink balls and 13 yellow balls. How many balls are there in all?
  2. 2.8 + 1 + 6 =
  3. 3.There are 8 green flowers and 3 pink flowers. How many flowers are there in all?
  4. 4.2 + ? = 3
  5. 5.8 + 2 =
  6. 6.7 + 8 + 2 =
  7. 7.17 + 3 =
  8. 8.2 + ? = 18
  9. 9.7 + 3 + 10 =
  10. 10.Nisha has 7 balloons and gets 6 balloons more. How many balloons does Nisha have now?
  11. 11.1 + 1 + 2 =
  12. 12.There are 11 red beads and 4 white beads. How many beads are there in all?
  13. 13.Zoya has 13 laddoos and gets 3 laddoos more. How many laddoos does Zoya have now?
  14. 14.Ananya has 11 balls and gets 6 balls more. How many balls does Ananya have now?
  15. 15.Tara has 12 balloons and gets 6 balloons more. How many balloons does Tara have now?
  16. 16.There are 2 pink beads and 8 red beads. How many beads are there in all?
  17. 17.Tara has 14 flowers and gets 6 flowers more. How many flowers does Tara have now?
  18. 18.There are 12 blue kites and 2 pink kites. How many kites are there in all?
  19. 19.11 + 2 =
  20. 20.There are 12 blue flowers and 3 white flowers. How many flowers are there in all?
  21. 21.1 + 2 + 13 =
  22. 22.7 + ? = 19
  23. 23.1 + ? = 6
  24. 24.There are 10 red flowers and 9 blue flowers. How many flowers are there in all?
  25. 25.Farhan has 5 marbles and gets 9 marbles more. How many marbles does Farhan have now?
  26. 26.6 + 8 =
  27. 27.There are 5 pink beads and 8 red beads. How many beads are there in all?
  28. 28.? + 4 = 8
  29. 29.19 + 1 =
  30. 30.Kabir has 3 kites and gets 17 kites more. How many kites does Kabir have now?
  31. 31.6 + 8 + 4 =
  32. 32.4 + ? = 14
  33. 33.8 + 1 + 11 =
  34. 34.Riya has 7 flowers and gets 8 flowers more. How many flowers does Riya have now?
  35. 35.There are 9 pink balloons and 5 blue balloons. How many balloons are there in all?
  36. 36.6 + 6 + 4 =
  37. 37.1 + 1 + 14 =
  38. 38.12 + 2 =
  39. 39.There are 9 green balloons and 7 yellow balloons. How many balloons are there in all?
  40. 40.? + 8 = 13

Answer key

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

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