← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 421 · 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.? + 3 = 10
  2. 2.8 + 4 + 6 =
  3. 3.17 + 2 =
  4. 4.9 + 5 =
  5. 5.1 + 2 =
  6. 6.2 + 17 =
  7. 7.There are 6 red balloons and 12 yellow balloons. How many balloons are there in all?
  8. 8.Kabir has 9 mangoes and gets 8 mangoes more. How many mangoes does Kabir have now?
  9. 9.There are 11 yellow flowers and 8 red flowers. How many flowers are there in all?
  10. 10.3 + ? = 5
  11. 11.12 + 8 =
  12. 12.There are 3 white balloons and 12 green balloons. How many balloons are there in all?
  13. 13.2 + 5 =
  14. 14.Rohan has 15 mangoes and gets 2 mangoes more. How many mangoes does Rohan have now?
  15. 15.Diya has 2 bananas and gets 15 bananas more. How many bananas does Diya have now?
  16. 16.5 + 1 + 12 =
  17. 17.5 + ? = 16
  18. 18.There are 2 white crayons and 2 yellow crayons. How many crayons are there in all?
  19. 19.There are 3 white kites and 6 red kites. How many kites are there in all?
  20. 20.Dev has 4 pencils and gets 4 pencils more. How many pencils does Dev have now?
  21. 21.10 + 1 =
  22. 22.3 + ? = 11
  23. 23.1 + 18 =
  24. 24.? + 3 = 8
  25. 25.There are 10 yellow kites and 6 green kites. How many kites are there in all?
  26. 26.There are 8 pink kites and 9 red kites. How many kites are there in all?
  27. 27.2 + 11 =
  28. 28.Kavya has 10 balloons and gets 4 balloons more. How many balloons does Kavya have now?
  29. 29.3 + 8 + 7 =
  30. 30.There are 10 blue balloons and 9 yellow balloons. How many balloons are there in all?
  31. 31.11 + 9 =
  32. 32.? + 3 = 4
  33. 33.14 + 5 =
  34. 34.5 + ? = 11
  35. 35.5 + 6 =
  36. 36.4 + 16 =
  37. 37.2 + 7 =
  38. 38.Diya has 6 balls and gets 3 balls more. How many balls does Diya have now?
  39. 39.Tara has 3 bananas and gets 17 bananas more. How many bananas does Tara have now?
  40. 40.4 + 7 + 3 =

Answer key

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

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets