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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 368 · 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.Kavya has 3 laddoos and gets 1 laddoo more. How many laddoos does Kavya have now?
  2. 2.Joseph has 9 kites and gets 2 kites more. How many kites does Joseph have now?
  3. 3.5 + 1 + 9 =
  4. 4.18 + 1 =
  5. 5.Riya has 15 pencils and gets 3 pencils more. How many pencils does Riya have now?
  6. 6.7 + 8 + 3 =
  7. 7.There are 12 white balls and 8 pink balls. How many balls are there in all?
  8. 8.1 + 2 + 1 =
  9. 9.There are 3 yellow flowers and 5 white flowers. How many flowers are there in all?
  10. 10.18 + 2 =
  11. 11.1 + ? = 8
  12. 12.2 + 5 + 10 =
  13. 13.There are 6 red balloons and 10 blue balloons. How many balloons are there in all?
  14. 14.1 + 8 + 11 =
  15. 15.2 + 7 + 3 =
  16. 16.? + 11 = 14
  17. 17.3 + 2 + 5 =
  18. 18.? + 3 = 7
  19. 19.There are 8 red beads and 8 yellow beads. How many beads are there in all?
  20. 20.There are 12 yellow kites and 7 green kites. How many kites are there in all?
  21. 21.3 + ? = 5
  22. 22.1 + 8 + 6 =
  23. 23.3 + ? = 8
  24. 24.1 + 17 =
  25. 25.Aditya has 4 crayons and gets 9 crayons more. How many crayons does Aditya have now?
  26. 26.Zoya has 12 kites and gets 1 kite more. How many kites does Zoya have now?
  27. 27.1 + 15 =
  28. 28.? + 6 = 10
  29. 29.11 + 4 =
  30. 30.6 + 5 =
  31. 31.Kavya has 3 bananas and gets 7 bananas more. How many bananas does Kavya have now?
  32. 32.6 + 4 + 2 =
  33. 33.10 + ? = 15
  34. 34.1 + 5 + 7 =
  35. 35.Ananya has 9 pencils and gets 7 pencils more. How many pencils does Ananya have now?
  36. 36.Vivaan has 12 bananas and gets 1 banana more. How many bananas does Vivaan have now?
  37. 37.? + 8 = 19
  38. 38.There are 4 green kites and 4 red kites. How many kites are there in all?
  39. 39.11 + ? = 19
  40. 40.There are 8 white balls and 7 blue balls. How many balls are there in all?

Answer key

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

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