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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 936 · 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 3 pencils and gets 15 pencils more. How many pencils does Gurpreet have now?
  2. 2.? + 6 = 7
  3. 3.Arjun has 11 mangoes and gets 3 mangoes more. How many mangoes does Arjun have now?
  4. 4.? + 9 = 10
  5. 5.11 + 6 =
  6. 6.5 + 6 + 2 =
  7. 7.Sneha has 4 bananas and gets 2 bananas more. How many bananas does Sneha have now?
  8. 8.2 + 1 + 4 =
  9. 9.? + 2 = 7
  10. 10.1 + 4 + 9 =
  11. 11.There are 4 blue beads and 16 white beads. How many beads are there in all?
  12. 12.There are 10 red kites and 7 pink kites. How many kites are there in all?
  13. 13.4 + 2 + 13 =
  14. 14.6 + 3 + 5 =
  15. 15.4 + 1 + 1 =
  16. 16.Ishaan has 10 pencils and gets 2 pencils more. How many pencils does Ishaan have now?
  17. 17.Karan has 5 kites and gets 8 kites more. How many kites does Karan have now?
  18. 18.? + 4 = 7
  19. 19.11 + 4 =
  20. 20.1 + ? = 4
  21. 21.2 + ? = 6
  22. 22.There are 12 blue crayons and 7 yellow crayons. How many crayons are there in all?
  23. 23.6 + 1 + 13 =
  24. 24.Riya has 8 balloons and gets 1 balloon more. How many balloons does Riya have now?
  25. 25.5 + ? = 7
  26. 26.5 + 3 + 1 =
  27. 27.15 + 1 =
  28. 28.4 + 3 + 2 =
  29. 29.7 + ? = 11
  30. 30.18 + 1 =
  31. 31.Karan has 15 crayons and gets 4 crayons more. How many crayons does Karan have now?
  32. 32.1 + ? = 5
  33. 33.Gurpreet has 8 balls and gets 4 balls more. How many balls does Gurpreet have now?
  34. 34.Tara has 6 balls and gets 2 balls more. How many balls does Tara have now?
  35. 35.1 + 2 + 16 =
  36. 36.1 + 5 =
  37. 37.18 + 2 =
  38. 38.Zoya has 7 pencils and gets 13 pencils more. How many pencils does Zoya have now?
  39. 39.10 + 10 =
  40. 40.Kabir has 3 crayons and gets 13 crayons more. How many crayons does Kabir have now?

Answer key

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

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