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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 845 · 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.There are 6 yellow beads and 4 green beads. How many beads are there in all?
  2. 2.6 + 6 =
  3. 3.6 + ? = 13
  4. 4.Priya has 15 crayons and gets 2 crayons more. How many crayons does Priya have now?
  5. 5.2 + 3 =
  6. 6.Aarav has 14 balloons and gets 5 balloons more. How many balloons does Aarav have now?
  7. 7.There are 2 yellow balloons and 3 red balloons. How many balloons are there in all?
  8. 8.8 + 3 =
  9. 9.4 + 7 + 8 =
  10. 10.8 + 3 + 9 =
  11. 11.13 + 3 =
  12. 12.18 + 1 =
  13. 13.Riya has 12 bananas and gets 4 bananas more. How many bananas does Riya have now?
  14. 14.3 + 3 + 4 =
  15. 15.Saanvi has 11 bananas and gets 5 bananas more. How many bananas does Saanvi have now?
  16. 16.There are 7 green kites and 4 yellow kites. How many kites are there in all?
  17. 17.5 + 2 =
  18. 18.Vivaan has 13 bananas and gets 2 bananas more. How many bananas does Vivaan have now?
  19. 19.3 + 5 + 6 =
  20. 20.? + 1 = 3
  21. 21.There are 7 pink beads and 5 red beads. How many beads are there in all?
  22. 22.There are 4 blue crayons and 14 white crayons. How many crayons are there in all?
  23. 23.There are 3 pink flowers and 5 green flowers. How many flowers are there in all?
  24. 24.? + 1 = 16
  25. 25.7 + 8 + 2 =
  26. 26.6 + 8 + 5 =
  27. 27.There are 12 red crayons and 5 yellow crayons. How many crayons are there in all?
  28. 28.There are 5 green beads and 11 red beads. How many beads are there in all?
  29. 29.There are 9 pink crayons and 7 green crayons. How many crayons are there in all?
  30. 30.Arjun has 9 mangoes and gets 2 mangoes more. How many mangoes does Arjun have now?
  31. 31.There are 4 blue balloons and 3 white balloons. How many balloons are there in all?
  32. 32.2 + ? = 4
  33. 33.5 + 4 + 5 =
  34. 34.14 + 3 =
  35. 35.13 + 7 =
  36. 36.2 + 7 + 4 =
  37. 37.3 + 3 + 9 =
  38. 38.1 + ? = 9
  39. 39.1 + 1 + 11 =
  40. 40.There are 3 pink crayons and 12 white crayons. How many crayons are there in all?

Answer key

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

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