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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 167 · 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. 1.8 + 7 =
  2. 2.Nisha has 13 crayons and gets 4 crayons more. How many crayons does Nisha have now?
  3. 3.Meera has 10 pencils and gets 6 pencils more. How many pencils does Meera have now?
  4. 4.Karan has 7 balls and gets 9 balls more. How many balls does Karan have now?
  5. 5.There are 9 red crayons and 8 yellow crayons. How many crayons are there in all?
  6. 6.8 + 1 + 10 =
  7. 7.Dev has 2 mangoes and gets 18 mangoes more. How many mangoes does Dev have now?
  8. 8.5 + 6 + 2 =
  9. 9.4 + 8 + 8 =
  10. 10.2 + 3 =
  11. 11.Aarav has 3 balloons and gets 16 balloons more. How many balloons does Aarav have now?
  12. 12.10 + 10 =
  13. 13.There are 9 green kites and 6 yellow kites. How many kites are there in all?
  14. 14.8 + ? = 10
  15. 15.7 + 5 =
  16. 16.2 + ? = 7
  17. 17.19 + 1 =
  18. 18.12 + 5 =
  19. 19.7 + 8 =
  20. 20.? + 4 = 17
  21. 21.There are 8 green balloons and 9 white balloons. How many balloons are there in all?
  22. 22.8 + 6 + 2 =
  23. 23.Vivaan has 13 bananas and gets 4 bananas more. How many bananas does Vivaan have now?
  24. 24.4 + 7 + 7 =
  25. 25.5 + 1 + 3 =
  26. 26.Aditya has 12 books and gets 6 books more. How many books does Aditya have now?
  27. 27.There are 5 red kites and 11 pink kites. How many kites are there in all?
  28. 28.There are 3 yellow crayons and 6 blue crayons. How many crayons are there in all?
  29. 29.Dev has 7 kites and gets 11 kites more. How many kites does Dev have now?
  30. 30.7 + 7 + 2 =
  31. 31.1 + ? = 3
  32. 32.18 + 1 =
  33. 33.13 + ? = 16
  34. 34.There are 7 yellow crayons and 5 white crayons. How many crayons are there in all?
  35. 35.2 + 13 =
  36. 36.There are 3 red flowers and 14 white flowers. How many flowers are there in all?
  37. 37.13 + ? = 19
  38. 38.Isha has 2 flowers and gets 3 flowers more. How many flowers does Isha have now?
  39. 39.There are 12 red flowers and 3 white flowers. How many flowers are there in all?
  40. 40.? + 16 = 18

Answer key

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

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