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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 47 · 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.Sneha has 13 mangoes and gets 2 mangoes more. How many mangoes does Sneha have now?
  2. 2.9 + 9 =
  3. 3.There are 9 green balloons and 11 pink balloons. How many balloons are there in all?
  4. 4.? + 1 = 12
  5. 5.There are 9 yellow beads and 9 pink beads. How many beads are there in all?
  6. 6.? + 3 = 4
  7. 7.14 + 6 =
  8. 8.1 + 5 + 3 =
  9. 9.8 + 8 + 4 =
  10. 10.17 + 2 =
  11. 11.4 + 7 + 8 =
  12. 12.1 + ? = 4
  13. 13.4 + ? = 6
  14. 14.Joseph has 3 bananas and gets 13 bananas more. How many bananas does Joseph have now?
  15. 15.2 + 5 + 13 =
  16. 16.? + 6 = 20
  17. 17.Priya has 8 balloons and gets 2 balloons more. How many balloons does Priya have now?
  18. 18.16 + 2 =
  19. 19.Farhan has 4 pencils and gets 15 pencils more. How many pencils does Farhan have now?
  20. 20.Ananya has 3 flowers and gets 3 flowers more. How many flowers does Ananya have now?
  21. 21.5 + ? = 6
  22. 22.19 + 1 =
  23. 23.? + 1 = 10
  24. 24.2 + ? = 3
  25. 25.There are 11 yellow crayons and 9 blue crayons. How many crayons are there in all?
  26. 26.3 + ? = 17
  27. 27.Kavya has 13 pencils and gets 1 pencil more. How many pencils does Kavya have now?
  28. 28.1 + 2 =
  29. 29.Gurpreet has 7 kites and gets 10 kites more. How many kites does Gurpreet have now?
  30. 30.7 + 1 + 11 =
  31. 31.Ishaan has 15 balloons and gets 1 balloon more. How many balloons does Ishaan have now?
  32. 32.6 + 4 + 4 =
  33. 33.8 + 7 =
  34. 34.Karan has 4 kites and gets 11 kites more. How many kites does Karan have now?
  35. 35.10 + 5 =
  36. 36.Pooja has 4 books and gets 1 book more. How many books does Pooja have now?
  37. 37.There are 3 white balloons and 2 yellow balloons. How many balloons are there in all?
  38. 38.2 + 4 + 7 =
  39. 39.There are 9 red beads and 7 yellow beads. How many beads are there in all?
  40. 40.Joseph has 11 crayons and gets 5 crayons more. How many crayons does Joseph have now?

Answer key

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

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