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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 711 · 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.There are 11 pink beads and 4 red beads. How many beads are there in all?
  2. 2.18 + 1 =
  3. 3.5 + 5 + 7 =
  4. 4.Saanvi has 4 books and gets 14 books more. How many books does Saanvi have now?
  5. 5.17 + 1 =
  6. 6.There are 10 blue beads and 10 red beads. How many beads are there in all?
  7. 7.Dev has 9 laddoos and gets 8 laddoos more. How many laddoos does Dev have now?
  8. 8.1 + 19 =
  9. 9.Saanvi has 15 mangoes and gets 1 mango more. How many mangoes does Saanvi have now?
  10. 10.Nisha has 14 kites and gets 4 kites more. How many kites does Nisha have now?
  11. 11.Priya has 7 laddoos and gets 8 laddoos more. How many laddoos does Priya have now?
  12. 12.8 + 1 + 6 =
  13. 13.Manav has 7 kites and gets 8 kites more. How many kites does Manav have now?
  14. 14.Ananya has 4 kites and gets 1 kite more. How many kites does Ananya have now?
  15. 15.4 + 5 =
  16. 16.4 + ? = 5
  17. 17.There are 3 green beads and 14 yellow beads. How many beads are there in all?
  18. 18.6 + ? = 8
  19. 19.There are 6 pink beads and 10 white beads. How many beads are there in all?
  20. 20.7 + ? = 14
  21. 21.3 + 17 =
  22. 22.Ananya has 7 balls and gets 2 balls more. How many balls does Ananya have now?
  23. 23.? + 3 = 20
  24. 24.2 + 4 + 12 =
  25. 25.11 + 6 =
  26. 26.5 + 7 =
  27. 27.Rohan has 10 marbles and gets 7 marbles more. How many marbles does Rohan have now?
  28. 28.Aditya has 5 crayons and gets 4 crayons more. How many crayons does Aditya have now?
  29. 29.13 + 7 =
  30. 30.13 + 2 =
  31. 31.1 + 8 =
  32. 32.There are 6 white kites and 11 pink kites. How many kites are there in all?
  33. 33.? + 9 = 12
  34. 34.Priya has 10 shells and gets 4 shells more. How many shells does Priya have now?
  35. 35.1 + ? = 4
  36. 36.There are 3 blue crayons and 11 yellow crayons. How many crayons are there in all?
  37. 37.2 + 2 + 11 =
  38. 38.18 + 2 =
  39. 39.There are 6 white balloons and 2 red balloons. How many balloons are there in all?
  40. 40.13 + 1 =

Answer key

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

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