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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 348 · 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. 1.10 + 5 =
  2. 2.Farhan has 7 bananas and gets 5 bananas more. How many bananas does Farhan have now?
  3. 3.? + 5 = 6
  4. 4.There are 5 blue balls and 4 pink balls. How many balls are there in all?
  5. 5.There are 4 pink kites and 5 blue kites. How many kites are there in all?
  6. 6.6 + 6 =
  7. 7.1 + 4 + 14 =
  8. 8.Ananya has 12 flowers and gets 7 flowers more. How many flowers does Ananya have now?
  9. 9.14 + ? = 16
  10. 10.3 + 4 + 4 =
  11. 11.4 + 3 + 9 =
  12. 12.? + 2 = 14
  13. 13.? + 2 = 5
  14. 14.1 + 1 + 2 =
  15. 15.18 + 1 =
  16. 16.? + 8 = 11
  17. 17.6 + 7 + 5 =
  18. 18.There are 3 white flowers and 10 red flowers. How many flowers are there in all?
  19. 19.There are 6 white beads and 3 blue beads. How many beads are there in all?
  20. 20.Saanvi has 2 balls and gets 4 balls more. How many balls does Saanvi have now?
  21. 21.5 + 9 =
  22. 22.Diya has 4 kites and gets 4 kites more. How many kites does Diya have now?
  23. 23.8 + 11 =
  24. 24.1 + ? = 4
  25. 25.19 + 1 =
  26. 26.10 + 1 =
  27. 27.Priya has 12 pencils and gets 2 pencils more. How many pencils does Priya have now?
  28. 28.There are 4 blue balls and 5 red balls. How many balls are there in all?
  29. 29.There are 3 red flowers and 3 yellow flowers. How many flowers are there in all?
  30. 30.There are 9 blue flowers and 7 red flowers. How many flowers are there in all?
  31. 31.15 + ? = 18
  32. 32.15 + 4 =
  33. 33.18 + 2 =
  34. 34.? + 4 = 12
  35. 35.? + 9 = 16
  36. 36.There are 2 green kites and 3 red kites. How many kites are there in all?
  37. 37.14 + 2 =
  38. 38.Vivaan has 6 shells and gets 8 shells more. How many shells does Vivaan have now?
  39. 39.5 + 7 + 6 =
  40. 40.17 + 2 =

Answer key

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

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