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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 927 · 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.Vivaan has 13 marbles and gets 6 marbles more. How many marbles does Vivaan have now?
  2. 2.3 + ? = 12
  3. 3.There are 11 red balloons and 8 pink balloons. How many balloons are there in all?
  4. 4.5 + 13 =
  5. 5.2 + 2 + 15 =
  6. 6.Saanvi has 12 kites and gets 2 kites more. How many kites does Saanvi have now?
  7. 7.6 + 12 =
  8. 8.4 + 8 =
  9. 9.Sneha has 11 bananas and gets 1 banana more. How many bananas does Sneha have now?
  10. 10.2 + 8 + 8 =
  11. 11.3 + ? = 4
  12. 12.Meera has 7 bananas and gets 3 bananas more. How many bananas does Meera have now?
  13. 13.1 + 2 + 10 =
  14. 14.8 + ? = 19
  15. 15.1 + ? = 11
  16. 16.1 + 6 =
  17. 17.There are 10 red beads and 4 pink beads. How many beads are there in all?
  18. 18.3 + 8 + 5 =
  19. 19.? + 6 = 10
  20. 20.16 + 3 =
  21. 21.Manav has 5 books and gets 1 book more. How many books does Manav have now?
  22. 22.Rohan has 8 marbles and gets 7 marbles more. How many marbles does Rohan have now?
  23. 23.16 + 2 =
  24. 24.7 + 4 + 2 =
  25. 25.13 + 1 =
  26. 26.4 + 2 + 11 =
  27. 27.2 + ? = 4
  28. 28.16 + 1 =
  29. 29.There are 5 yellow kites and 3 pink kites. How many kites are there in all?
  30. 30.Rohan has 14 marbles and gets 5 marbles more. How many marbles does Rohan have now?
  31. 31.2 + 7 + 6 =
  32. 32.7 + ? = 10
  33. 33.There are 2 blue balloons and 8 pink balloons. How many balloons are there in all?
  34. 34.? + 7 = 19
  35. 35.? + 2 = 3
  36. 36.Rahul has 5 pencils and gets 10 pencils more. How many pencils does Rahul have now?
  37. 37.17 + 2 =
  38. 38.1 + 4 + 6 =
  39. 39.? + 7 = 16
  40. 40.2 + 5 + 1 =

Answer key

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

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