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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 147 · 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. 1.17 + 3 =
  2. 2.There are 8 red balloons and 4 green balloons. How many balloons are there in all?
  3. 3.Karan has 7 pencils and gets 6 pencils more. How many pencils does Karan have now?
  4. 4.Gurpreet has 11 balloons and gets 5 balloons more. How many balloons does Gurpreet have now?
  5. 5.? + 1 = 6
  6. 6.There are 6 blue kites and 2 white kites. How many kites are there in all?
  7. 7.9 + 7 =
  8. 8.9 + 9 =
  9. 9.4 + 3 + 11 =
  10. 10.There are 7 yellow flowers and 10 green flowers. How many flowers are there in all?
  11. 11.Farhan has 2 pencils and gets 9 pencils more. How many pencils does Farhan have now?
  12. 12.Isha has 9 laddoos and gets 9 laddoos more. How many laddoos does Isha have now?
  13. 13.Meera has 8 balloons and gets 2 balloons more. How many balloons does Meera have now?
  14. 14.Farhan has 13 flowers and gets 5 flowers more. How many flowers does Farhan have now?
  15. 15.? + 9 = 15
  16. 16.? + 2 = 17
  17. 17.Kabir has 7 flowers and gets 5 flowers more. How many flowers does Kabir have now?
  18. 18.16 + 4 =
  19. 19.Isha has 9 pencils and gets 8 pencils more. How many pencils does Isha have now?
  20. 20.5 + 4 + 8 =
  21. 21.There are 7 blue kites and 5 yellow kites. How many kites are there in all?
  22. 22.? + 4 = 8
  23. 23.Zoya has 4 marbles and gets 9 marbles more. How many marbles does Zoya have now?
  24. 24.13 + 1 =
  25. 25.There are 2 green balloons and 11 pink balloons. How many balloons are there in all?
  26. 26.18 + 2 =
  27. 27.Meera has 3 laddoos and gets 16 laddoos more. How many laddoos does Meera have now?
  28. 28.1 + 13 =
  29. 29.10 + 2 =
  30. 30.2 + ? = 19
  31. 31.1 + 1 + 14 =
  32. 32.8 + ? = 18
  33. 33.Aarav has 8 flowers and gets 5 flowers more. How many flowers does Aarav have now?
  34. 34.4 + 2 + 11 =
  35. 35.12 + 1 =
  36. 36.Isha has 13 mangoes and gets 1 mango more. How many mangoes does Isha have now?
  37. 37.3 + ? = 5
  38. 38.? + 6 = 16
  39. 39.There are 8 white kites and 2 red kites. How many kites are there in all?
  40. 40.7 + ? = 13

Answer key

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

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