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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 832 · 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. 1.5 + 7 =
  2. 2.There are 12 blue balls and 5 white balls. How many balls are there in all?
  3. 3.Aarav has 4 flowers and gets 9 flowers more. How many flowers does Aarav have now?
  4. 4.? + 5 = 6
  5. 5.9 + 10 =
  6. 6.Dev has 11 flowers and gets 7 flowers more. How many flowers does Dev have now?
  7. 7.Meera has 3 shells and gets 12 shells more. How many shells does Meera have now?
  8. 8.8 + ? = 15
  9. 9.? + 6 = 11
  10. 10.Kabir has 4 balloons and gets 16 balloons more. How many balloons does Kabir have now?
  11. 11.2 + 4 + 12 =
  12. 12.Joseph has 2 balls and gets 18 balls more. How many balls does Joseph have now?
  13. 13.? + 1 = 16
  14. 14.2 + 5 + 5 =
  15. 15.Farhan has 13 balloons and gets 4 balloons more. How many balloons does Farhan have now?
  16. 16.Isha has 5 flowers and gets 2 flowers more. How many flowers does Isha have now?
  17. 17.8 + 5 + 5 =
  18. 18.Karan has 13 balloons and gets 2 balloons more. How many balloons does Karan have now?
  19. 19.6 + 1 + 1 =
  20. 20.Gurpreet has 9 kites and gets 1 kite more. How many kites does Gurpreet have now?
  21. 21.14 + 2 =
  22. 22.There are 10 yellow beads and 5 green beads. How many beads are there in all?
  23. 23.There are 12 red flowers and 4 yellow flowers. How many flowers are there in all?
  24. 24.Joseph has 3 balls and gets 9 balls more. How many balls does Joseph have now?
  25. 25.Rohan has 5 flowers and gets 3 flowers more. How many flowers does Rohan have now?
  26. 26.? + 13 = 17
  27. 27.? + 8 = 10
  28. 28.There are 7 pink beads and 3 blue beads. How many beads are there in all?
  29. 29.Vivaan has 13 marbles and gets 5 marbles more. How many marbles does Vivaan have now?
  30. 30.4 + 2 + 5 =
  31. 31.16 + 3 =
  32. 32.Pooja has 11 pencils and gets 8 pencils more. How many pencils does Pooja have now?
  33. 33.3 + 10 =
  34. 34.There are 11 yellow crayons and 9 white crayons. How many crayons are there in all?
  35. 35.There are 8 blue beads and 2 white beads. How many beads are there in all?
  36. 36.There are 12 red beads and 8 pink beads. How many beads are there in all?
  37. 37.8 + 7 + 1 =
  38. 38.There are 8 green kites and 8 yellow kites. How many kites are there in all?
  39. 39.10 + 2 =
  40. 40.There are 3 white flowers and 7 red flowers. How many flowers are there in all?

Answer key

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

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