← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 267 · 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.Saanvi has 2 marbles and gets 13 marbles more. How many marbles does Saanvi have now?
  2. 2.5 + 3 + 3 =
  3. 3.Tara has 9 pencils and gets 6 pencils more. How many pencils does Tara have now?
  4. 4.1 + 1 =
  5. 5.16 + ? = 20
  6. 6.10 + 8 =
  7. 7.4 + 4 =
  8. 8.There are 11 red flowers and 4 white flowers. How many flowers are there in all?
  9. 9.1 + 5 + 4 =
  10. 10.7 + 3 + 8 =
  11. 11.8 + ? = 15
  12. 12.4 + 5 + 10 =
  13. 13.Dev has 9 crayons and gets 2 crayons more. How many crayons does Dev have now?
  14. 14.There are 9 blue kites and 11 red kites. How many kites are there in all?
  15. 15.There are 2 green kites and 13 blue kites. How many kites are there in all?
  16. 16.Zoya has 5 marbles and gets 15 marbles more. How many marbles does Zoya have now?
  17. 17.6 + 9 =
  18. 18.13 + 4 =
  19. 19.There are 10 yellow balls and 10 white balls. How many balls are there in all?
  20. 20.2 + 6 + 1 =
  21. 21.6 + 8 =
  22. 22.There are 10 green balls and 8 blue balls. How many balls are there in all?
  23. 23.1 + 6 + 9 =
  24. 24.Nisha has 9 shells and gets 11 shells more. How many shells does Nisha have now?
  25. 25.7 + 6 + 3 =
  26. 26.? + 1 = 3
  27. 27.7 + 7 + 2 =
  28. 28.2 + 3 + 5 =
  29. 29.There are 3 white crayons and 7 green crayons. How many crayons are there in all?
  30. 30.Diya has 14 balls and gets 5 balls more. How many balls does Diya have now?
  31. 31.2 + ? = 3
  32. 32.There are 12 red balloons and 7 white balloons. How many balloons are there in all?
  33. 33.6 + 3 + 2 =
  34. 34.Dev has 15 marbles and gets 4 marbles more. How many marbles does Dev have now?
  35. 35.2 + ? = 9
  36. 36.Ishaan has 11 pencils and gets 2 pencils more. How many pencils does Ishaan have now?
  37. 37.12 + 7 =
  38. 38.? + 7 = 8
  39. 39.7 + ? = 10
  40. 40.2 + ? = 8

Answer key

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

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets