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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 539 · 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. 1.2 + 8 + 1 =
  2. 2.Rahul has 10 crayons and gets 2 crayons more. How many crayons does Rahul have now?
  3. 3.Priya has 9 bananas and gets 8 bananas more. How many bananas does Priya have now?
  4. 4.8 + 6 + 2 =
  5. 5.Priya has 3 flowers and gets 4 flowers more. How many flowers does Priya have now?
  6. 6.11 + 3 =
  7. 7.2 + 11 =
  8. 8.? + 8 = 19
  9. 9.? + 1 = 5
  10. 10.? + 4 = 6
  11. 11.? + 2 = 7
  12. 12.There are 12 red beads and 4 white beads. How many beads are there in all?
  13. 13.6 + 6 + 7 =
  14. 14.? + 3 = 20
  15. 15.1 + ? = 6
  16. 16.Gurpreet has 3 kites and gets 8 kites more. How many kites does Gurpreet have now?
  17. 17.Vivaan has 3 marbles and gets 9 marbles more. How many marbles does Vivaan have now?
  18. 18.1 + ? = 4
  19. 19.2 + 8 + 5 =
  20. 20.? + 8 = 13
  21. 21.? + 10 = 14
  22. 22.Nisha has 11 marbles and gets 4 marbles more. How many marbles does Nisha have now?
  23. 23.7 + 2 + 6 =
  24. 24.15 + 4 =
  25. 25.Meera has 13 balls and gets 3 balls more. How many balls does Meera have now?
  26. 26.7 + ? = 9
  27. 27.Ishaan has 2 kites and gets 3 kites more. How many kites does Ishaan have now?
  28. 28.8 + 4 + 1 =
  29. 29.Rahul has 4 balls and gets 2 balls more. How many balls does Rahul have now?
  30. 30.9 + ? = 14
  31. 31.11 + 2 =
  32. 32.Karan has 11 balls and gets 3 balls more. How many balls does Karan have now?
  33. 33.There are 10 blue crayons and 4 yellow crayons. How many crayons are there in all?
  34. 34.There are 2 blue balloons and 4 white balloons. How many balloons are there in all?
  35. 35.5 + ? = 8
  36. 36.6 + 8 + 6 =
  37. 37.13 + 7 =
  38. 38.Nisha has 14 pencils and gets 1 pencil more. How many pencils does Nisha have now?
  39. 39.Kabir has 2 flowers and gets 2 flowers more. How many flowers does Kabir have now?
  40. 40.Zoya has 2 flowers and gets 13 flowers more. How many flowers does Zoya have now?

Answer key

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

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