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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 938 · 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. 1.3 + ? = 5
  2. 2.6 + 2 =
  3. 3.? + 2 = 8
  4. 4.? + 4 = 7
  5. 5.Vivaan has 6 bananas and gets 3 bananas more. How many bananas does Vivaan have now?
  6. 6.4 + 5 + 6 =
  7. 7.8 + ? = 16
  8. 8.There are 3 green crayons and 6 white crayons. How many crayons are there in all?
  9. 9.1 + 2 =
  10. 10.8 + ? = 10
  11. 11.There are 2 blue balloons and 3 yellow balloons. How many balloons are there in all?
  12. 12.7 + 2 =
  13. 13.Rohan has 8 balls and gets 9 balls more. How many balls does Rohan have now?
  14. 14.12 + ? = 16
  15. 15.Farhan has 2 balls and gets 5 balls more. How many balls does Farhan have now?
  16. 16.1 + 7 + 11 =
  17. 17.7 + 3 =
  18. 18.6 + 6 + 3 =
  19. 19.Kabir has 5 marbles and gets 10 marbles more. How many marbles does Kabir have now?
  20. 20.5 + 4 =
  21. 21.1 + 1 + 5 =
  22. 22.Ananya has 14 balloons and gets 4 balloons more. How many balloons does Ananya have now?
  23. 23.13 + 1 =
  24. 24.19 + 1 =
  25. 25.Aditya has 9 pencils and gets 8 pencils more. How many pencils does Aditya have now?
  26. 26.Gurpreet has 11 bananas and gets 1 banana more. How many bananas does Gurpreet have now?
  27. 27.There are 9 red flowers and 4 pink flowers. How many flowers are there in all?
  28. 28.? + 1 = 7
  29. 29.4 + ? = 15
  30. 30.6 + 1 =
  31. 31.4 + 4 =
  32. 32.There are 8 green flowers and 3 blue flowers. How many flowers are there in all?
  33. 33.There are 3 green flowers and 11 yellow flowers. How many flowers are there in all?
  34. 34.? + 3 = 5
  35. 35.There are 12 red balloons and 4 pink balloons. How many balloons are there in all?
  36. 36.9 + 11 =
  37. 37.There are 8 pink flowers and 3 blue flowers. How many flowers are there in all?
  38. 38.There are 9 blue crayons and 11 red crayons. How many crayons are there in all?
  39. 39.14 + 4 =
  40. 40.3 + 4 =

Answer key

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

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