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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 763 · 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.Gurpreet has 5 crayons and gets 2 crayons more. How many crayons does Gurpreet have now?
  2. 2.3 + ? = 13
  3. 3.5 + ? = 11
  4. 4.Nisha has 2 mangoes and gets 5 mangoes more. How many mangoes does Nisha have now?
  5. 5.? + 7 = 15
  6. 6.4 + 7 =
  7. 7.? + 3 = 14
  8. 8.4 + 3 =
  9. 9.There are 2 green flowers and 12 yellow flowers. How many flowers are there in all?
  10. 10.There are 10 yellow balls and 3 red balls. How many balls are there in all?
  11. 11.Rohan has 4 flowers and gets 1 flower more. How many flowers does Rohan have now?
  12. 12.There are 7 green beads and 11 blue beads. How many beads are there in all?
  13. 13.? + 2 = 7
  14. 14.7 + 4 + 6 =
  15. 15.6 + 4 + 8 =
  16. 16.There are 4 yellow kites and 10 red kites. How many kites are there in all?
  17. 17.10 + 2 =
  18. 18.1 + ? = 19
  19. 19.2 + 1 + 14 =
  20. 20.There are 2 blue balloons and 4 yellow balloons. How many balloons are there in all?
  21. 21.? + 11 = 13
  22. 22.Arjun has 4 balls and gets 3 balls more. How many balls does Arjun have now?
  23. 23.18 + 1 =
  24. 24.? + 3 = 9
  25. 25.6 + 8 + 3 =
  26. 26.? + 12 = 20
  27. 27.? + 8 = 14
  28. 28.13 + ? = 20
  29. 29.There are 11 pink crayons and 7 blue crayons. How many crayons are there in all?
  30. 30.Sneha has 8 pencils and gets 1 pencil more. How many pencils does Sneha have now?
  31. 31.8 + 3 + 7 =
  32. 32.? + 8 = 9
  33. 33.There are 3 red flowers and 8 yellow flowers. How many flowers are there in all?
  34. 34.? + 5 = 19
  35. 35.? + 11 = 14
  36. 36.Ishaan has 5 balls and gets 7 balls more. How many balls does Ishaan have now?
  37. 37.6 + 8 + 6 =
  38. 38.There are 4 blue kites and 4 yellow kites. How many kites are there in all?
  39. 39.5 + 7 + 7 =
  40. 40.8 + 6 + 4 =

Answer key

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

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