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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 680 · 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. 1.6 + 6 + 4 =
  2. 2.Meera has 7 marbles and gets 6 marbles more. How many marbles does Meera have now?
  3. 3.Ananya has 3 bananas and gets 13 bananas more. How many bananas does Ananya have now?
  4. 4.6 + ? = 7
  5. 5.2 + 7 + 6 =
  6. 6.Meera has 8 crayons and gets 9 crayons more. How many crayons does Meera have now?
  7. 7.There are 6 white flowers and 7 yellow flowers. How many flowers are there in all?
  8. 8.3 + ? = 4
  9. 9.2 + 14 =
  10. 10.Pooja has 5 balloons and gets 2 balloons more. How many balloons does Pooja have now?
  11. 11.11 + 8 =
  12. 12.1 + ? = 4
  13. 13.7 + 2 =
  14. 14.There are 2 pink flowers and 4 red flowers. How many flowers are there in all?
  15. 15.? + 8 = 13
  16. 16.5 + 4 + 5 =
  17. 17.1 + 2 + 10 =
  18. 18.15 + 1 =
  19. 19.10 + 2 =
  20. 20.There are 10 green beads and 6 pink beads. How many beads are there in all?
  21. 21.Kavya has 14 crayons and gets 5 crayons more. How many crayons does Kavya have now?
  22. 22.Ananya has 6 marbles and gets 9 marbles more. How many marbles does Ananya have now?
  23. 23.8 + 7 + 1 =
  24. 24.6 + 2 + 8 =
  25. 25.2 + ? = 6
  26. 26.1 + 6 + 4 =
  27. 27.There are 6 pink balloons and 11 green balloons. How many balloons are there in all?
  28. 28.3 + 6 + 9 =
  29. 29.? + 1 = 8
  30. 30.11 + 2 =
  31. 31.3 + 6 + 1 =
  32. 32.6 + 4 + 1 =
  33. 33.There are 3 yellow balls and 8 red balls. How many balls are there in all?
  34. 34.Rohan has 6 mangoes and gets 11 mangoes more. How many mangoes does Rohan have now?
  35. 35.? + 4 = 11
  36. 36.9 + 10 =
  37. 37.? + 15 = 17
  38. 38.7 + 2 + 7 =
  39. 39.Isha has 12 bananas and gets 4 bananas more. How many bananas does Isha have now?
  40. 40.1 + ? = 6

Answer key

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

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