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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 212 · 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. 1.13 + 3 =
  2. 2.There are 7 white crayons and 4 green crayons. How many crayons are there in all?
  3. 3.Meera has 6 crayons and gets 10 crayons more. How many crayons does Meera have now?
  4. 4.10 + 6 =
  5. 5.2 + 6 + 1 =
  6. 6.Zoya has 10 shells and gets 6 shells more. How many shells does Zoya have now?
  7. 7.There are 9 yellow balloons and 4 blue balloons. How many balloons are there in all?
  8. 8.4 + 3 =
  9. 9.Karan has 9 shells and gets 10 shells more. How many shells does Karan have now?
  10. 10.7 + 4 =
  11. 11.There are 6 yellow balloons and 9 green balloons. How many balloons are there in all?
  12. 12.There are 8 white balls and 5 pink balls. How many balls are there in all?
  13. 13.There are 9 blue kites and 4 pink kites. How many kites are there in all?
  14. 14.5 + ? = 7
  15. 15.16 + 2 =
  16. 16.7 + 5 =
  17. 17.? + 8 = 17
  18. 18.5 + 4 + 6 =
  19. 19.There are 8 red balloons and 9 green balloons. How many balloons are there in all?
  20. 20.Tara has 2 flowers and gets 16 flowers more. How many flowers does Tara have now?
  21. 21.10 + 3 =
  22. 22.2 + ? = 3
  23. 23.Kabir has 2 shells and gets 5 shells more. How many shells does Kabir have now?
  24. 24.6 + 1 + 12 =
  25. 25.3 + 16 =
  26. 26.There are 8 white flowers and 9 pink flowers. How many flowers are there in all?
  27. 27.There are 3 yellow kites and 2 red kites. How many kites are there in all?
  28. 28.Arjun has 9 marbles and gets 6 marbles more. How many marbles does Arjun have now?
  29. 29.3 + 5 + 5 =
  30. 30.There are 6 blue beads and 3 white beads. How many beads are there in all?
  31. 31.Pooja has 2 balls and gets 14 balls more. How many balls does Pooja have now?
  32. 32.4 + 2 + 9 =
  33. 33.Aarav has 4 flowers and gets 1 flower more. How many flowers does Aarav have now?
  34. 34.10 + ? = 13
  35. 35.Riya has 10 crayons and gets 1 crayon more. How many crayons does Riya have now?
  36. 36.There are 9 green flowers and 8 red flowers. How many flowers are there in all?
  37. 37.6 + 11 =
  38. 38.There are 9 red flowers and 4 white flowers. How many flowers are there in all?
  39. 39.17 + 1 =
  40. 40.2 + 4 =

Answer key

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

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