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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 883 · 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. 1.4 + 7 + 4 =
  2. 2.There are 9 green flowers and 9 yellow flowers. How many flowers are there in all?
  3. 3.There are 10 green balloons and 4 white balloons. How many balloons are there in all?
  4. 4.? + 5 = 8
  5. 5.Priya has 7 pencils and gets 9 pencils more. How many pencils does Priya have now?
  6. 6.1 + 3 + 5 =
  7. 7.Vivaan has 3 bananas and gets 9 bananas more. How many bananas does Vivaan have now?
  8. 8.16 + 1 =
  9. 9.8 + 8 + 1 =
  10. 10.Gurpreet has 4 pencils and gets 4 pencils more. How many pencils does Gurpreet have now?
  11. 11.Farhan has 15 marbles and gets 4 marbles more. How many marbles does Farhan have now?
  12. 12.Sneha has 4 balloons and gets 4 balloons more. How many balloons does Sneha have now?
  13. 13.3 + 3 + 7 =
  14. 14.2 + 1 =
  15. 15.7 + 4 + 2 =
  16. 16.10 + 1 =
  17. 17.7 + 3 + 8 =
  18. 18.2 + 7 + 6 =
  19. 19.? + 7 = 9
  20. 20.? + 6 = 11
  21. 21.4 + 7 + 2 =
  22. 22.Saanvi has 2 shells and gets 7 shells more. How many shells does Saanvi have now?
  23. 23.2 + 12 =
  24. 24.Aarav has 2 mangoes and gets 11 mangoes more. How many mangoes does Aarav have now?
  25. 25.14 + 4 =
  26. 26.There are 5 green balls and 4 pink balls. How many balls are there in all?
  27. 27.There are 4 green crayons and 3 white crayons. How many crayons are there in all?
  28. 28.Zoya has 6 shells and gets 1 shell more. How many shells does Zoya have now?
  29. 29.7 + 8 + 1 =
  30. 30.Pooja has 4 flowers and gets 14 flowers more. How many flowers does Pooja have now?
  31. 31.There are 4 white flowers and 12 blue flowers. How many flowers are there in all?
  32. 32.There are 3 yellow flowers and 6 red flowers. How many flowers are there in all?
  33. 33.11 + 1 =
  34. 34.Saanvi has 13 marbles and gets 6 marbles more. How many marbles does Saanvi have now?
  35. 35.5 + ? = 13
  36. 36.There are 6 blue balls and 14 white balls. How many balls are there in all?
  37. 37.? + 2 = 4
  38. 38.2 + 4 + 3 =
  39. 39.4 + 3 + 11 =
  40. 40.5 + 1 + 4 =

Answer key

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

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