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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 949 · 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. 1.6 + 6 + 8 =
  2. 2.Ananya has 4 laddoos and gets 14 laddoos more. How many laddoos does Ananya have now?
  3. 3.5 + 6 + 5 =
  4. 4.5 + 9 =
  5. 5.There are 12 white balloons and 8 blue balloons. How many balloons are there in all?
  6. 6.There are 3 pink flowers and 15 yellow flowers. How many flowers are there in all?
  7. 7.Isha has 11 balloons and gets 4 balloons more. How many balloons does Isha have now?
  8. 8.10 + ? = 18
  9. 9.6 + 4 =
  10. 10.8 + 1 + 2 =
  11. 11.2 + 8 =
  12. 12.There are 5 blue crayons and 4 red crayons. How many crayons are there in all?
  13. 13.1 + 1 + 10 =
  14. 14.8 + 4 =
  15. 15.10 + 10 =
  16. 16.4 + 3 + 4 =
  17. 17.5 + 13 =
  18. 18.2 + 3 + 4 =
  19. 19.9 + 7 =
  20. 20.1 + ? = 10
  21. 21.15 + 2 =
  22. 22.Vivaan has 15 pencils and gets 4 pencils more. How many pencils does Vivaan have now?
  23. 23.17 + 3 =
  24. 24.Arjun has 6 flowers and gets 14 flowers more. How many flowers does Arjun have now?
  25. 25.Farhan has 12 kites and gets 8 kites more. How many kites does Farhan have now?
  26. 26.There are 12 blue kites and 2 white kites. How many kites are there in all?
  27. 27.16 + 3 =
  28. 28.2 + 8 + 8 =
  29. 29.? + 9 = 12
  30. 30.Vivaan has 9 books and gets 4 books more. How many books does Vivaan have now?
  31. 31.Gurpreet has 4 crayons and gets 3 crayons more. How many crayons does Gurpreet have now?
  32. 32.Aditya has 3 balls and gets 8 balls more. How many balls does Aditya have now?
  33. 33.Farhan has 12 laddoos and gets 8 laddoos more. How many laddoos does Farhan have now?
  34. 34.Nisha has 9 laddoos and gets 11 laddoos more. How many laddoos does Nisha have now?
  35. 35.7 + ? = 8
  36. 36.11 + 7 =
  37. 37.? + 2 = 3
  38. 38.11 + 2 =
  39. 39.5 + ? = 7
  40. 40.6 + 7 =

Answer key

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

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