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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 751 · 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.There are 5 blue flowers and 7 yellow flowers. How many flowers are there in all?
  2. 2.There are 2 green flowers and 14 pink flowers. How many flowers are there in all?
  3. 3.10 + ? = 14
  4. 4.16 + ? = 17
  5. 5.5 + 8 + 3 =
  6. 6.Karan has 7 bananas and gets 10 bananas more. How many bananas does Karan have now?
  7. 7.Kabir has 10 bananas and gets 8 bananas more. How many bananas does Kabir have now?
  8. 8.2 + 2 + 3 =
  9. 9.1 + 3 =
  10. 10.There are 11 white flowers and 6 red flowers. How many flowers are there in all?
  11. 11.? + 2 = 3
  12. 12.3 + 15 =
  13. 13.Nisha has 2 marbles and gets 4 marbles more. How many marbles does Nisha have now?
  14. 14.Pooja has 13 shells and gets 3 shells more. How many shells does Pooja have now?
  15. 15.1 + 4 + 8 =
  16. 16.There are 10 pink beads and 6 white beads. How many beads are there in all?
  17. 17.There are 8 yellow flowers and 4 green flowers. How many flowers are there in all?
  18. 18.Diya has 3 balloons and gets 8 balloons more. How many balloons does Diya have now?
  19. 19.3 + 6 + 1 =
  20. 20.11 + 2 =
  21. 21.6 + 9 =
  22. 22.There are 2 red crayons and 16 pink crayons. How many crayons are there in all?
  23. 23.3 + 14 =
  24. 24.8 + 5 =
  25. 25.2 + 1 + 4 =
  26. 26.? + 9 = 12
  27. 27.4 + 3 =
  28. 28.There are 5 white balloons and 3 red balloons. How many balloons are there in all?
  29. 29.5 + ? = 16
  30. 30.7 + ? = 16
  31. 31.Meera has 4 crayons and gets 3 crayons more. How many crayons does Meera have now?
  32. 32.Aditya has 6 marbles and gets 14 marbles more. How many marbles does Aditya have now?
  33. 33.10 + 5 =
  34. 34.4 + ? = 18
  35. 35.4 + 8 + 4 =
  36. 36.2 + 8 + 5 =
  37. 37.Dev has 9 marbles and gets 11 marbles more. How many marbles does Dev have now?
  38. 38.4 + 5 + 3 =
  39. 39.Ananya has 6 bananas and gets 14 bananas more. How many bananas does Ananya have now?
  40. 40.4 + 5 + 1 =

Answer key

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

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