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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 232 · 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. 1.5 + 6 + 1 =
  2. 2.Karan has 8 flowers and gets 7 flowers more. How many flowers does Karan have now?
  3. 3.? + 3 = 16
  4. 4.? + 3 = 4
  5. 5.There are 12 green balls and 4 blue balls. How many balls are there in all?
  6. 6.1 + 1 + 10 =
  7. 7.There are 2 white flowers and 7 yellow flowers. How many flowers are there in all?
  8. 8.3 + 1 + 1 =
  9. 9.There are 7 green beads and 5 pink beads. How many beads are there in all?
  10. 10.1 + 1 + 12 =
  11. 11.11 + 9 =
  12. 12.There are 10 blue balloons and 4 white balloons. How many balloons are there in all?
  13. 13.1 + ? = 3
  14. 14.Vivaan has 7 balloons and gets 13 balloons more. How many balloons does Vivaan have now?
  15. 15.? + 1 = 8
  16. 16.6 + 6 + 2 =
  17. 17.Ananya has 15 balls and gets 2 balls more. How many balls does Ananya have now?
  18. 18.Sneha has 9 bananas and gets 2 bananas more. How many bananas does Sneha have now?
  19. 19.10 + 4 =
  20. 20.8 + 1 =
  21. 21.2 + 18 =
  22. 22.1 + ? = 13
  23. 23.There are 2 green flowers and 5 white flowers. How many flowers are there in all?
  24. 24.5 + 7 + 5 =
  25. 25.6 + ? = 7
  26. 26.9 + ? = 10
  27. 27.2 + 6 =
  28. 28.Aditya has 13 balls and gets 3 balls more. How many balls does Aditya have now?
  29. 29.3 + 6 + 3 =
  30. 30.There are 7 yellow beads and 3 blue beads. How many beads are there in all?
  31. 31.7 + 1 =
  32. 32.There are 2 red balls and 5 white balls. How many balls are there in all?
  33. 33.6 + 2 + 12 =
  34. 34.There are 2 green kites and 6 white kites. How many kites are there in all?
  35. 35.14 + 2 =
  36. 36.Pooja has 8 pencils and gets 8 pencils more. How many pencils does Pooja have now?
  37. 37.There are 12 green crayons and 5 blue crayons. How many crayons are there in all?
  38. 38.14 + 4 =
  39. 39.Riya has 7 flowers and gets 12 flowers more. How many flowers does Riya have now?
  40. 40.8 + ? = 16

Answer key

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

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