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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 623 · 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. 1.6 + 4 =
  2. 2.5 + 1 =
  3. 3.There are 4 yellow flowers and 4 red flowers. How many flowers are there in all?
  4. 4.There are 12 pink crayons and 7 red crayons. How many crayons are there in all?
  5. 5.Diya has 9 flowers and gets 1 flower more. How many flowers does Diya have now?
  6. 6.4 + 3 + 6 =
  7. 7.There are 8 yellow kites and 12 blue kites. How many kites are there in all?
  8. 8.Joseph has 6 shells and gets 10 shells more. How many shells does Joseph have now?
  9. 9.Nisha has 2 shells and gets 7 shells more. How many shells does Nisha have now?
  10. 10.Vivaan has 14 mangoes and gets 2 mangoes more. How many mangoes does Vivaan have now?
  11. 11.Gurpreet has 13 marbles and gets 4 marbles more. How many marbles does Gurpreet have now?
  12. 12.4 + 1 =
  13. 13.There are 4 green balloons and 6 pink balloons. How many balloons are there in all?
  14. 14.There are 2 green kites and 2 white kites. How many kites are there in all?
  15. 15.4 + 7 + 1 =
  16. 16.1 + 1 =
  17. 17.There are 7 red kites and 12 pink kites. How many kites are there in all?
  18. 18.6 + 8 + 2 =
  19. 19.15 + ? = 19
  20. 20.There are 11 white kites and 5 red kites. How many kites are there in all?
  21. 21.Tara has 12 balloons and gets 4 balloons more. How many balloons does Tara have now?
  22. 22.16 + 4 =
  23. 23.Aarav has 2 books and gets 3 books more. How many books does Aarav have now?
  24. 24.4 + 5 + 3 =
  25. 25.2 + ? = 3
  26. 26.3 + 8 + 6 =
  27. 27.6 + ? = 9
  28. 28.10 + 9 =
  29. 29.Aarav has 7 pencils and gets 5 pencils more. How many pencils does Aarav have now?
  30. 30.5 + 6 + 1 =
  31. 31.2 + 10 =
  32. 32.There are 9 blue balls and 4 pink balls. How many balls are there in all?
  33. 33.Meera has 7 balls and gets 10 balls more. How many balls does Meera have now?
  34. 34.9 + 4 =
  35. 35.Gurpreet has 5 balls and gets 15 balls more. How many balls does Gurpreet have now?
  36. 36.12 + 1 =
  37. 37.5 + 3 + 1 =
  38. 38.There are 9 green beads and 10 yellow beads. How many beads are there in all?
  39. 39.There are 2 pink balloons and 3 red balloons. How many balloons are there in all?
  40. 40.There are 2 yellow crayons and 12 red crayons. How many crayons are there in all?

Answer key

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

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