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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 925 · 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. 1.2 + 6 + 6 =
  2. 2.There are 3 pink beads and 14 red beads. How many beads are there in all?
  3. 3.5 + 7 =
  4. 4.9 + 4 =
  5. 5.? + 1 = 16
  6. 6.13 + 2 =
  7. 7.2 + 5 + 9 =
  8. 8.Riya has 11 shells and gets 8 shells more. How many shells does Riya have now?
  9. 9.7 + 2 + 1 =
  10. 10.There are 2 white beads and 6 red beads. How many beads are there in all?
  11. 11.7 + 10 =
  12. 12.Nisha has 2 laddoos and gets 9 laddoos more. How many laddoos does Nisha have now?
  13. 13.? + 3 = 18
  14. 14.16 + 3 =
  15. 15.3 + 5 + 3 =
  16. 16.6 + 2 + 9 =
  17. 17.Sneha has 6 balloons and gets 13 balloons more. How many balloons does Sneha have now?
  18. 18.10 + 2 =
  19. 19.7 + ? = 17
  20. 20.8 + 8 =
  21. 21.Tara has 15 bananas and gets 2 bananas more. How many bananas does Tara have now?
  22. 22.9 + 3 =
  23. 23.8 + 1 + 8 =
  24. 24.3 + 8 + 8 =
  25. 25.12 + 8 =
  26. 26.There are 10 yellow beads and 5 blue beads. How many beads are there in all?
  27. 27.There are 5 red flowers and 3 green flowers. How many flowers are there in all?
  28. 28.There are 7 yellow crayons and 4 green crayons. How many crayons are there in all?
  29. 29.Pooja has 14 kites and gets 1 kite more. How many kites does Pooja have now?
  30. 30.16 + 1 =
  31. 31.There are 10 red beads and 9 white beads. How many beads are there in all?
  32. 32.Kavya has 8 mangoes and gets 9 mangoes more. How many mangoes does Kavya have now?
  33. 33.Manav has 3 balls and gets 3 balls more. How many balls does Manav have now?
  34. 34.6 + 1 + 2 =
  35. 35.15 + 4 =
  36. 36.? + 1 = 5
  37. 37.Meera has 2 balls and gets 8 balls more. How many balls does Meera have now?
  38. 38.1 + 17 =
  39. 39.There are 11 yellow balloons and 2 red balloons. How many balloons are there in all?
  40. 40.5 + 7 + 8 =

Answer key

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

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