← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 227 · 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. 1.19 + 1 =
  2. 2.4 + 2 + 13 =
  3. 3.Aditya has 4 marbles and gets 3 marbles more. How many marbles does Aditya have now?
  4. 4.18 + 2 =
  5. 5.4 + ? = 5
  6. 6.5 + 9 =
  7. 7.16 + ? = 18
  8. 8.17 + 3 =
  9. 9.2 + 8 + 7 =
  10. 10.5 + 3 + 12 =
  11. 11.Kavya has 10 balls and gets 2 balls more. How many balls does Kavya have now?
  12. 12.? + 3 = 15
  13. 13.13 + 5 =
  14. 14.11 + 5 =
  15. 15.Diya has 5 laddoos and gets 10 laddoos more. How many laddoos does Diya have now?
  16. 16.Aarav has 2 kites and gets 12 kites more. How many kites does Aarav have now?
  17. 17.There are 7 white beads and 4 red beads. How many beads are there in all?
  18. 18.There are 10 green flowers and 9 red flowers. How many flowers are there in all?
  19. 19.9 + 11 =
  20. 20.7 + ? = 17
  21. 21.? + 16 = 19
  22. 22.Saanvi has 4 flowers and gets 8 flowers more. How many flowers does Saanvi have now?
  23. 23.There are 9 white crayons and 2 red crayons. How many crayons are there in all?
  24. 24.5 + 14 =
  25. 25.2 + ? = 8
  26. 26.18 + 1 =
  27. 27.10 + 9 =
  28. 28.6 + 1 + 4 =
  29. 29.8 + 3 + 4 =
  30. 30.12 + 3 =
  31. 31.11 + 7 =
  32. 32.There are 5 blue beads and 14 red beads. How many beads are there in all?
  33. 33.4 + 10 =
  34. 34.6 + ? = 7
  35. 35.There are 10 blue flowers and 4 yellow flowers. How many flowers are there in all?
  36. 36.There are 2 yellow balloons and 15 blue balloons. How many balloons are there in all?
  37. 37.15 + ? = 19
  38. 38.? + 1 = 3
  39. 39.There are 4 green balloons and 14 blue balloons. How many balloons are there in all?
  40. 40.Aarav has 7 books and gets 3 books more. How many books does Aarav have now?

Answer key

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

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