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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 173 · 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.Rahul has 4 pencils and gets 12 pencils more. How many pencils does Rahul have now?
  2. 2.? + 18 = 19
  3. 3.Kabir has 7 balls and gets 3 balls more. How many balls does Kabir have now?
  4. 4.2 + 5 =
  5. 5.11 + 7 =
  6. 6.There are 8 pink kites and 6 green kites. How many kites are there in all?
  7. 7.10 + ? = 15
  8. 8.Ishaan has 10 books and gets 7 books more. How many books does Ishaan have now?
  9. 9.Ishaan has 3 marbles and gets 5 marbles more. How many marbles does Ishaan have now?
  10. 10.Rohan has 12 mangoes and gets 3 mangoes more. How many mangoes does Rohan have now?
  11. 11.There are 12 red beads and 2 white beads. How many beads are there in all?
  12. 12.8 + 7 + 2 =
  13. 13.There are 2 pink balls and 17 white balls. How many balls are there in all?
  14. 14.? + 4 = 16
  15. 15.6 + ? = 15
  16. 16.Diya has 5 mangoes and gets 1 mango more. How many mangoes does Diya have now?
  17. 17.6 + 7 =
  18. 18.14 + 6 =
  19. 19.7 + 7 + 4 =
  20. 20.Arjun has 3 laddoos and gets 2 laddoos more. How many laddoos does Arjun have now?
  21. 21.? + 6 = 8
  22. 22.There are 9 white kites and 7 pink kites. How many kites are there in all?
  23. 23.There are 12 blue kites and 3 red kites. How many kites are there in all?
  24. 24.There are 5 pink kites and 6 white kites. How many kites are there in all?
  25. 25.There are 11 yellow balloons and 5 white balloons. How many balloons are there in all?
  26. 26.There are 11 red balloons and 2 blue balloons. How many balloons are there in all?
  27. 27.7 + 10 =
  28. 28.6 + 7 + 3 =
  29. 29.1 + ? = 19
  30. 30.1 + 17 =
  31. 31.There are 9 white beads and 9 red beads. How many beads are there in all?
  32. 32.5 + 13 =
  33. 33.There are 8 pink crayons and 9 blue crayons. How many crayons are there in all?
  34. 34.? + 8 = 9
  35. 35.Ishaan has 5 bananas and gets 6 bananas more. How many bananas does Ishaan have now?
  36. 36.15 + 1 =
  37. 37.There are 9 red balls and 2 pink balls. How many balls are there in all?
  38. 38.Nisha has 6 flowers and gets 8 flowers more. How many flowers does Nisha have now?
  39. 39.7 + 8 + 5 =
  40. 40.5 + 5 + 9 =

Answer key

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

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