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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 611 · 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. 1.8 + ? = 18
  2. 2.6 + 12 =
  3. 3.? + 1 = 4
  4. 4.9 + 5 =
  5. 5.There are 5 red beads and 8 white beads. How many beads are there in all?
  6. 6.12 + 7 =
  7. 7.There are 5 white crayons and 13 yellow crayons. How many crayons are there in all?
  8. 8.Arjun has 3 kites and gets 1 kite more. How many kites does Arjun have now?
  9. 9.4 + 10 =
  10. 10.Ananya has 6 balloons and gets 14 balloons more. How many balloons does Ananya have now?
  11. 11.4 + 6 + 3 =
  12. 12.Nisha has 8 flowers and gets 3 flowers more. How many flowers does Nisha have now?
  13. 13.There are 3 pink kites and 7 yellow kites. How many kites are there in all?
  14. 14.There are 3 red beads and 2 blue beads. How many beads are there in all?
  15. 15.2 + 8 + 9 =
  16. 16.Aditya has 13 flowers and gets 1 flower more. How many flowers does Aditya have now?
  17. 17.There are 5 blue beads and 9 red beads. How many beads are there in all?
  18. 18.4 + 6 =
  19. 19.There are 12 blue balloons and 2 white balloons. How many balloons are there in all?
  20. 20.4 + 3 + 6 =
  21. 21.1 + 14 =
  22. 22.6 + ? = 12
  23. 23.Gurpreet has 3 mangoes and gets 9 mangoes more. How many mangoes does Gurpreet have now?
  24. 24.7 + 4 + 8 =
  25. 25.Vivaan has 5 crayons and gets 5 crayons more. How many crayons does Vivaan have now?
  26. 26.1 + 5 + 6 =
  27. 27.? + 11 = 16
  28. 28.Farhan has 15 mangoes and gets 2 mangoes more. How many mangoes does Farhan have now?
  29. 29.There are 2 red balloons and 12 white balloons. How many balloons are there in all?
  30. 30.7 + 5 =
  31. 31.There are 3 green kites and 9 white kites. How many kites are there in all?
  32. 32.? + 1 = 16
  33. 33.9 + 8 =
  34. 34.19 + 1 =
  35. 35.15 + 1 =
  36. 36.Sneha has 11 laddoos and gets 8 laddoos more. How many laddoos does Sneha have now?
  37. 37.3 + 17 =
  38. 38.1 + 5 =
  39. 39.1 + ? = 4
  40. 40.3 + 5 + 7 =

Answer key

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

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