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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 707 · 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.Vivaan has 3 bananas and gets 13 bananas more. How many bananas does Vivaan have now?
  2. 2.? + 2 = 8
  3. 3.Nisha has 8 shells and gets 9 shells more. How many shells does Nisha have now?
  4. 4.6 + 2 + 10 =
  5. 5.Diya has 2 marbles and gets 17 marbles more. How many marbles does Diya have now?
  6. 6.6 + 4 + 6 =
  7. 7.Kavya has 12 kites and gets 3 kites more. How many kites does Kavya have now?
  8. 8.There are 7 red balls and 3 yellow balls. How many balls are there in all?
  9. 9.3 + 4 =
  10. 10.There are 5 pink flowers and 11 blue flowers. How many flowers are there in all?
  11. 11.Zoya has 14 balloons and gets 1 balloon more. How many balloons does Zoya have now?
  12. 12.Dev has 9 books and gets 11 books more. How many books does Dev have now?
  13. 13.There are 8 red flowers and 6 white flowers. How many flowers are there in all?
  14. 14.There are 11 blue flowers and 6 red flowers. How many flowers are there in all?
  15. 15.7 + ? = 9
  16. 16.9 + ? = 20
  17. 17.2 + ? = 7
  18. 18.3 + ? = 8
  19. 19.10 + ? = 11
  20. 20.13 + 7 =
  21. 21.There are 11 yellow crayons and 9 white crayons. How many crayons are there in all?
  22. 22.3 + 2 + 3 =
  23. 23.There are 8 red balloons and 3 green balloons. How many balloons are there in all?
  24. 24.There are 9 white balls and 10 blue balls. How many balls are there in all?
  25. 25.Aditya has 6 shells and gets 5 shells more. How many shells does Aditya have now?
  26. 26.8 + 8 + 2 =
  27. 27.9 + 1 =
  28. 28.There are 5 red crayons and 6 blue crayons. How many crayons are there in all?
  29. 29.Priya has 6 balls and gets 3 balls more. How many balls does Priya have now?
  30. 30.16 + 1 =
  31. 31.? + 2 = 4
  32. 32.Vivaan has 4 pencils and gets 6 pencils more. How many pencils does Vivaan have now?
  33. 33.Nisha has 2 mangoes and gets 17 mangoes more. How many mangoes does Nisha have now?
  34. 34.Karan has 6 marbles and gets 13 marbles more. How many marbles does Karan have now?
  35. 35.13 + 3 =
  36. 36.There are 10 pink balloons and 6 red balloons. How many balloons are there in all?
  37. 37.15 + 1 =
  38. 38.5 + 2 + 4 =
  39. 39.3 + 3 + 5 =
  40. 40.? + 10 = 14

Answer key

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

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