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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 524 · 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. 1.13 + 2 =
  2. 2.Rohan has 3 balloons and gets 3 balloons more. How many balloons does Rohan have now?
  3. 3.4 + 2 + 4 =
  4. 4.1 + 5 + 1 =
  5. 5.2 + 4 =
  6. 6.17 + 3 =
  7. 7.? + 16 = 19
  8. 8.6 + 3 + 10 =
  9. 9.There are 4 blue balloons and 3 red balloons. How many balloons are there in all?
  10. 10.Saanvi has 3 marbles and gets 17 marbles more. How many marbles does Saanvi have now?
  11. 11.5 + 5 + 2 =
  12. 12.There are 10 pink flowers and 8 green flowers. How many flowers are there in all?
  13. 13.Riya has 8 balloons and gets 2 balloons more. How many balloons does Riya have now?
  14. 14.There are 10 yellow crayons and 3 blue crayons. How many crayons are there in all?
  15. 15.Vivaan has 15 mangoes and gets 4 mangoes more. How many mangoes does Vivaan have now?
  16. 16.1 + 17 =
  17. 17.6 + 7 + 3 =
  18. 18.There are 8 green flowers and 3 white flowers. How many flowers are there in all?
  19. 19.Dev has 10 shells and gets 3 shells more. How many shells does Dev have now?
  20. 20.1 + 19 =
  21. 21.10 + 9 =
  22. 22.2 + 3 + 12 =
  23. 23.Rahul has 3 crayons and gets 17 crayons more. How many crayons does Rahul have now?
  24. 24.Nisha has 2 pencils and gets 9 pencils more. How many pencils does Nisha have now?
  25. 25.1 + ? = 10
  26. 26.3 + ? = 5
  27. 27.5 + ? = 8
  28. 28.Kavya has 8 balls and gets 5 balls more. How many balls does Kavya have now?
  29. 29.3 + ? = 8
  30. 30.Diya has 13 balloons and gets 1 balloon more. How many balloons does Diya have now?
  31. 31.18 + 2 =
  32. 32.Arjun has 14 balloons and gets 5 balloons more. How many balloons does Arjun have now?
  33. 33.? + 10 = 15
  34. 34.? + 2 = 16
  35. 35.Aditya has 9 kites and gets 3 kites more. How many kites does Aditya have now?
  36. 36.Karan has 15 balloons and gets 4 balloons more. How many balloons does Karan have now?
  37. 37.There are 9 green balloons and 4 yellow balloons. How many balloons are there in all?
  38. 38.2 + 2 + 10 =
  39. 39.There are 8 white beads and 4 pink beads. How many beads are there in all?
  40. 40.Nisha has 8 crayons and gets 5 crayons more. How many crayons does Nisha have now?

Answer key

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

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