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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 776 · 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. 1.7 + 2 + 8 =
  2. 2.Sneha has 15 balloons and gets 1 balloon more. How many balloons does Sneha have now?
  3. 3.Diya has 6 mangoes and gets 14 mangoes more. How many mangoes does Diya have now?
  4. 4.8 + 6 + 2 =
  5. 5.There are 8 blue balls and 9 pink balls. How many balls are there in all?
  6. 6.2 + ? = 10
  7. 7.There are 6 white crayons and 4 red crayons. How many crayons are there in all?
  8. 8.13 + 1 =
  9. 9.10 + 6 =
  10. 10.8 + 12 =
  11. 11.Gurpreet has 7 shells and gets 9 shells more. How many shells does Gurpreet have now?
  12. 12.8 + 9 =
  13. 13.? + 3 = 15
  14. 14.Zoya has 2 pencils and gets 15 pencils more. How many pencils does Zoya have now?
  15. 15.3 + ? = 4
  16. 16.? + 5 = 6
  17. 17.Farhan has 15 balls and gets 1 ball more. How many balls does Farhan have now?
  18. 18.? + 4 = 8
  19. 19.6 + 7 =
  20. 20.1 + 6 + 8 =
  21. 21.? + 4 = 5
  22. 22.There are 11 blue balls and 4 red balls. How many balls are there in all?
  23. 23.2 + ? = 20
  24. 24.6 + 6 + 8 =
  25. 25.7 + 9 =
  26. 26.Isha has 6 balloons and gets 10 balloons more. How many balloons does Isha have now?
  27. 27.3 + ? = 5
  28. 28.Kabir has 3 marbles and gets 15 marbles more. How many marbles does Kabir have now?
  29. 29.Isha has 4 bananas and gets 7 bananas more. How many bananas does Isha have now?
  30. 30.There are 4 yellow balls and 11 pink balls. How many balls are there in all?
  31. 31.Kavya has 9 flowers and gets 8 flowers more. How many flowers does Kavya have now?
  32. 32.Saanvi has 10 pencils and gets 3 pencils more. How many pencils does Saanvi have now?
  33. 33.1 + 4 + 15 =
  34. 34.3 + 8 + 3 =
  35. 35.Pooja has 13 kites and gets 6 kites more. How many kites does Pooja have now?
  36. 36.There are 6 pink balls and 9 white balls. How many balls are there in all?
  37. 37.? + 10 = 12
  38. 38.Rahul has 4 kites and gets 16 kites more. How many kites does Rahul have now?
  39. 39.7 + 10 =
  40. 40.There are 5 white kites and 8 yellow kites. How many kites are there in all?

Answer key

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

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