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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 387 · 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.Nisha has 14 flowers and gets 2 flowers more. How many flowers does Nisha have now?
  2. 2.Aarav has 11 crayons and gets 6 crayons more. How many crayons does Aarav have now?
  3. 3.3 + 5 + 7 =
  4. 4.There are 3 yellow balloons and 12 red balloons. How many balloons are there in all?
  5. 5.There are 10 green balls and 6 blue balls. How many balls are there in all?
  6. 6.? + 3 = 10
  7. 7.3 + 7 + 3 =
  8. 8.There are 11 pink flowers and 7 red flowers. How many flowers are there in all?
  9. 9.There are 4 red beads and 10 yellow beads. How many beads are there in all?
  10. 10.? + 6 = 7
  11. 11.Karan has 10 pencils and gets 4 pencils more. How many pencils does Karan have now?
  12. 12.5 + 4 + 6 =
  13. 13.? + 3 = 6
  14. 14.Kavya has 9 bananas and gets 8 bananas more. How many bananas does Kavya have now?
  15. 15.7 + 7 + 6 =
  16. 16.14 + 5 =
  17. 17.10 + ? = 14
  18. 18.Nisha has 7 balls and gets 12 balls more. How many balls does Nisha have now?
  19. 19.7 + ? = 11
  20. 20.19 + 1 =
  21. 21.6 + 2 + 8 =
  22. 22.Tara has 13 bananas and gets 3 bananas more. How many bananas does Tara have now?
  23. 23.? + 4 = 6
  24. 24.Manav has 4 flowers and gets 5 flowers more. How many flowers does Manav have now?
  25. 25.? + 1 = 6
  26. 26.There are 3 green balls and 13 pink balls. How many balls are there in all?
  27. 27.1 + ? = 3
  28. 28.2 + 17 =
  29. 29.Rohan has 3 shells and gets 6 shells more. How many shells does Rohan have now?
  30. 30.3 + 6 + 2 =
  31. 31.Isha has 5 flowers and gets 9 flowers more. How many flowers does Isha have now?
  32. 32.? + 3 = 5
  33. 33.Rohan has 9 books and gets 8 books more. How many books does Rohan have now?
  34. 34.? + 14 = 16
  35. 35.14 + 1 =
  36. 36.There are 5 pink flowers and 5 blue flowers. How many flowers are there in all?
  37. 37.There are 12 red beads and 3 yellow beads. How many beads are there in all?
  38. 38.? + 3 = 4
  39. 39.2 + 6 + 10 =
  40. 40.2 + 12 =

Answer key

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

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