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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 784 · 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 + 2 + 11 =
  2. 2.? + 6 = 7
  3. 3.There are 4 red crayons and 6 green crayons. How many crayons are there in all?
  4. 4.4 + 8 + 5 =
  5. 5.Kabir has 11 kites and gets 1 kite more. How many kites does Kabir have now?
  6. 6.5 + 13 =
  7. 7.1 + 3 + 14 =
  8. 8.? + 7 = 10
  9. 9.8 + 5 + 4 =
  10. 10.There are 2 yellow beads and 10 green beads. How many beads are there in all?
  11. 11.Kabir has 3 flowers and gets 8 flowers more. How many flowers does Kabir have now?
  12. 12.There are 8 yellow balls and 4 green balls. How many balls are there in all?
  13. 13.There are 11 pink balls and 8 red balls. How many balls are there in all?
  14. 14.There are 5 white balls and 3 pink balls. How many balls are there in all?
  15. 15.Priya has 9 kites and gets 5 kites more. How many kites does Priya have now?
  16. 16.There are 9 blue beads and 8 green beads. How many beads are there in all?
  17. 17.? + 5 = 6
  18. 18.1 + 6 + 2 =
  19. 19.18 + 1 =
  20. 20.4 + ? = 14
  21. 21.4 + ? = 5
  22. 22.16 + 1 =
  23. 23.Pooja has 3 balls and gets 5 balls more. How many balls does Pooja have now?
  24. 24.6 + 3 + 5 =
  25. 25.3 + 3 + 2 =
  26. 26.3 + 5 + 1 =
  27. 27.There are 10 yellow beads and 10 green beads. How many beads are there in all?
  28. 28.7 + 5 + 6 =
  29. 29.Diya has 8 pencils and gets 2 pencils more. How many pencils does Diya have now?
  30. 30.Karan has 7 laddoos and gets 4 laddoos more. How many laddoos does Karan have now?
  31. 31.10 + 1 =
  32. 32.Vivaan has 9 pencils and gets 1 pencil more. How many pencils does Vivaan have now?
  33. 33.8 + 6 + 3 =
  34. 34.2 + ? = 3
  35. 35.There are 7 pink balls and 13 yellow balls. How many balls are there in all?
  36. 36.Rohan has 5 pencils and gets 6 pencils more. How many pencils does Rohan have now?
  37. 37.There are 7 blue beads and 2 yellow beads. How many beads are there in all?
  38. 38.17 + 3 =
  39. 39.4 + 2 =
  40. 40.There are 4 blue flowers and 13 red flowers. How many flowers are there in all?

Answer key

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

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