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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 889 · 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.Aditya has 5 laddoos and gets 7 laddoos more. How many laddoos does Aditya have now?
  2. 2.? + 10 = 19
  3. 3.1 + 11 =
  4. 4.Karan has 14 pencils and gets 2 pencils more. How many pencils does Karan have now?
  5. 5.2 + ? = 12
  6. 6.3 + 3 =
  7. 7.Diya has 13 balloons and gets 5 balloons more. How many balloons does Diya have now?
  8. 8.Manav has 11 crayons and gets 2 crayons more. How many crayons does Manav have now?
  9. 9.1 + ? = 16
  10. 10.5 + ? = 7
  11. 11.Dev has 14 kites and gets 3 kites more. How many kites does Dev have now?
  12. 12.There are 9 red beads and 11 pink beads. How many beads are there in all?
  13. 13.3 + 3 + 12 =
  14. 14.7 + 1 + 9 =
  15. 15.There are 4 yellow balloons and 5 white balloons. How many balloons are there in all?
  16. 16.3 + 8 + 5 =
  17. 17.Meera has 13 crayons and gets 5 crayons more. How many crayons does Meera have now?
  18. 18.7 + 3 + 8 =
  19. 19.11 + 3 =
  20. 20.1 + 3 + 6 =
  21. 21.? + 2 = 7
  22. 22.3 + 5 =
  23. 23.Lakshmi has 8 balloons and gets 11 balloons more. How many balloons does Lakshmi have now?
  24. 24.5 + 11 =
  25. 25.15 + 5 =
  26. 26.10 + 3 =
  27. 27.1 + 14 =
  28. 28.Zoya has 8 shells and gets 12 shells more. How many shells does Zoya have now?
  29. 29.2 + 6 + 5 =
  30. 30.1 + 4 =
  31. 31.Tara has 5 marbles and gets 8 marbles more. How many marbles does Tara have now?
  32. 32.There are 2 pink beads and 15 blue beads. How many beads are there in all?
  33. 33.Vivaan has 5 balls and gets 15 balls more. How many balls does Vivaan have now?
  34. 34.15 + 4 =
  35. 35.There are 7 pink beads and 10 yellow beads. How many beads are there in all?
  36. 36.Diya has 8 bananas and gets 5 bananas more. How many bananas does Diya have now?
  37. 37.Aditya has 8 mangoes and gets 3 mangoes more. How many mangoes does Aditya have now?
  38. 38.12 + 2 =
  39. 39.Ananya has 12 crayons and gets 7 crayons more. How many crayons does Ananya have now?
  40. 40.Meera has 13 pencils and gets 2 pencils more. How many pencils does Meera have now?

Answer key

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

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