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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 806 · 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 3 green kites and 3 white kites. How many kites are there in all?
  2. 2.7 + 2 + 1 =
  3. 3.5 + 3 + 11 =
  4. 4.4 + 4 + 8 =
  5. 5.4 + 12 =
  6. 6.8 + 3 + 9 =
  7. 7.There are 8 yellow beads and 2 pink beads. How many beads are there in all?
  8. 8.? + 6 = 7
  9. 9.There are 5 red flowers and 12 white flowers. How many flowers are there in all?
  10. 10.Farhan has 3 shells and gets 17 shells more. How many shells does Farhan have now?
  11. 11.14 + 3 =
  12. 12.There are 11 yellow crayons and 2 green crayons. How many crayons are there in all?
  13. 13.7 + 6 + 7 =
  14. 14.Vivaan has 8 balls and gets 9 balls more. How many balls does Vivaan have now?
  15. 15.? + 4 = 5
  16. 16.Karan has 7 flowers and gets 8 flowers more. How many flowers does Karan have now?
  17. 17.4 + ? = 8
  18. 18.4 + 4 + 12 =
  19. 19.8 + 2 + 9 =
  20. 20.7 + 10 =
  21. 21.There are 8 yellow balloons and 3 red balloons. How many balloons are there in all?
  22. 22.2 + 11 =
  23. 23.Isha has 11 balloons and gets 9 balloons more. How many balloons does Isha have now?
  24. 24.There are 3 green balloons and 4 yellow balloons. How many balloons are there in all?
  25. 25.There are 2 red balls and 9 white balls. How many balls are there in all?
  26. 26.1 + ? = 4
  27. 27.There are 3 green kites and 14 red kites. How many kites are there in all?
  28. 28.Pooja has 8 books and gets 10 books more. How many books does Pooja have now?
  29. 29.4 + 7 + 4 =
  30. 30.There are 7 blue balloons and 10 green balloons. How many balloons are there in all?
  31. 31.Vivaan has 9 mangoes and gets 4 mangoes more. How many mangoes does Vivaan have now?
  32. 32.Vivaan has 6 shells and gets 1 shell more. How many shells does Vivaan have now?
  33. 33.Karan has 2 books and gets 15 books more. How many books does Karan have now?
  34. 34.Gurpreet has 6 shells and gets 11 shells more. How many shells does Gurpreet have now?
  35. 35.2 + 5 + 10 =
  36. 36.Sneha has 6 shells and gets 9 shells more. How many shells does Sneha have now?
  37. 37.There are 4 blue flowers and 4 red flowers. How many flowers are there in all?
  38. 38.There are 4 blue balls and 15 white balls. How many balls are there in all?
  39. 39.Saanvi has 13 pencils and gets 3 pencils more. How many pencils does Saanvi have now?
  40. 40.? + 1 = 12

Answer key

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

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