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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 60 · 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. 1.1 + 1 + 5 =
  2. 2.Gurpreet has 11 bananas and gets 8 bananas more. How many bananas does Gurpreet have now?
  3. 3.2 + 7 + 2 =
  4. 4.There are 10 yellow crayons and 4 pink crayons. How many crayons are there in all?
  5. 5.Riya has 6 marbles and gets 12 marbles more. How many marbles does Riya have now?
  6. 6.Vivaan has 4 marbles and gets 4 marbles more. How many marbles does Vivaan have now?
  7. 7.Dev has 3 balloons and gets 9 balloons more. How many balloons does Dev have now?
  8. 8.Arjun has 12 crayons and gets 5 crayons more. How many crayons does Arjun have now?
  9. 9.12 + 2 =
  10. 10.9 + 8 =
  11. 11.Rohan has 11 mangoes and gets 4 mangoes more. How many mangoes does Rohan have now?
  12. 12.? + 3 = 4
  13. 13.7 + 1 =
  14. 14.Nisha has 5 marbles and gets 12 marbles more. How many marbles does Nisha have now?
  15. 15.7 + ? = 14
  16. 16.3 + 2 =
  17. 17.1 + 5 + 7 =
  18. 18.There are 5 yellow balloons and 12 white balloons. How many balloons are there in all?
  19. 19.5 + 1 =
  20. 20.1 + ? = 9
  21. 21.7 + 6 + 6 =
  22. 22.6 + 6 + 4 =
  23. 23.5 + 5 =
  24. 24.2 + 12 =
  25. 25.There are 8 green beads and 6 red beads. How many beads are there in all?
  26. 26.Lakshmi has 9 books and gets 4 books more. How many books does Lakshmi have now?
  27. 27.1 + 6 + 1 =
  28. 28.1 + 19 =
  29. 29.Nisha has 4 kites and gets 12 kites more. How many kites does Nisha have now?
  30. 30.Arjun has 8 laddoos and gets 10 laddoos more. How many laddoos does Arjun have now?
  31. 31.There are 6 yellow balls and 13 pink balls. How many balls are there in all?
  32. 32.3 + 16 =
  33. 33.11 + ? = 12
  34. 34.8 + 4 + 1 =
  35. 35.1 + 15 =
  36. 36.Saanvi has 5 balls and gets 7 balls more. How many balls does Saanvi have now?
  37. 37.There are 9 blue crayons and 10 green crayons. How many crayons are there in all?
  38. 38.6 + 2 + 9 =
  39. 39.? + 2 = 17
  40. 40.There are 2 blue crayons and 2 white crayons. How many crayons are there in all?

Answer key

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

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