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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 93 · 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. 1.3 + 4 + 3 =
  2. 2.15 + ? = 16
  3. 3.2 + ? = 12
  4. 4.8 + 4 + 4 =
  5. 5.Diya has 4 crayons and gets 4 crayons more. How many crayons does Diya have now?
  6. 6.5 + 2 + 5 =
  7. 7.There are 6 red crayons and 9 yellow crayons. How many crayons are there in all?
  8. 8.There are 11 red flowers and 2 green flowers. How many flowers are there in all?
  9. 9.4 + 2 + 5 =
  10. 10.4 + 1 + 12 =
  11. 11.1 + 8 + 7 =
  12. 12.? + 2 = 10
  13. 13.Meera has 5 crayons and gets 1 crayon more. How many crayons does Meera have now?
  14. 14.12 + 7 =
  15. 15.11 + 4 =
  16. 16.Nisha has 2 pencils and gets 10 pencils more. How many pencils does Nisha have now?
  17. 17.7 + 6 =
  18. 18.12 + ? = 20
  19. 19.Ananya has 4 books and gets 5 books more. How many books does Ananya have now?
  20. 20.Kabir has 15 bananas and gets 5 bananas more. How many bananas does Kabir have now?
  21. 21.There are 7 yellow beads and 3 red beads. How many beads are there in all?
  22. 22.There are 4 yellow flowers and 2 green flowers. How many flowers are there in all?
  23. 23.12 + 5 =
  24. 24.6 + 9 =
  25. 25.? + 4 = 15
  26. 26.Zoya has 14 kites and gets 2 kites more. How many kites does Zoya have now?
  27. 27.? + 7 = 8
  28. 28.1 + ? = 7
  29. 29.5 + 10 =
  30. 30.11 + 5 =
  31. 31.Zoya has 15 kites and gets 2 kites more. How many kites does Zoya have now?
  32. 32.5 + 5 + 4 =
  33. 33.? + 9 = 12
  34. 34.? + 7 = 11
  35. 35.Gurpreet has 5 pencils and gets 10 pencils more. How many pencils does Gurpreet have now?
  36. 36.18 + 2 =
  37. 37.Rohan has 15 books and gets 1 book more. How many books does Rohan have now?
  38. 38.There are 6 green crayons and 8 blue crayons. How many crayons are there in all?
  39. 39.There are 12 yellow balls and 5 blue balls. How many balls are there in all?
  40. 40.? + 13 = 16

Answer key

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

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