← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 982 · 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. 1.17 + 3 =
  2. 2.7 + 6 + 5 =
  3. 3.Aarav has 12 marbles and gets 8 marbles more. How many marbles does Aarav have now?
  4. 4.12 + 2 =
  5. 5.Isha has 7 bananas and gets 10 bananas more. How many bananas does Isha have now?
  6. 6.There are 7 red balloons and 3 pink balloons. How many balloons are there in all?
  7. 7.Diya has 3 crayons and gets 17 crayons more. How many crayons does Diya have now?
  8. 8.Ishaan has 6 marbles and gets 14 marbles more. How many marbles does Ishaan have now?
  9. 9.5 + 2 + 9 =
  10. 10.19 + 1 =
  11. 11.11 + ? = 14
  12. 12.8 + 2 =
  13. 13.6 + ? = 11
  14. 14.Nisha has 4 kites and gets 9 kites more. How many kites does Nisha have now?
  15. 15.4 + 5 =
  16. 16.? + 4 = 18
  17. 17.There are 4 yellow crayons and 3 green crayons. How many crayons are there in all?
  18. 18.Diya has 5 mangoes and gets 3 mangoes more. How many mangoes does Diya have now?
  19. 19.2 + 2 =
  20. 20.Ishaan has 5 pencils and gets 3 pencils more. How many pencils does Ishaan have now?
  21. 21.6 + 2 =
  22. 22.There are 11 blue beads and 2 red beads. How many beads are there in all?
  23. 23.1 + 6 + 10 =
  24. 24.8 + ? = 18
  25. 25.3 + 5 + 4 =
  26. 26.Zoya has 4 laddoos and gets 5 laddoos more. How many laddoos does Zoya have now?
  27. 27.14 + ? = 18
  28. 28.4 + 4 + 10 =
  29. 29.6 + 7 + 6 =
  30. 30.13 + 4 =
  31. 31.2 + 3 + 4 =
  32. 32.There are 3 white balls and 9 red balls. How many balls are there in all?
  33. 33.2 + 4 =
  34. 34.8 + 7 =
  35. 35.4 + ? = 12
  36. 36.15 + 4 =
  37. 37.? + 12 = 20
  38. 38.Priya has 15 mangoes and gets 2 mangoes more. How many mangoes does Priya have now?
  39. 39.Kavya has 4 mangoes and gets 16 mangoes more. How many mangoes does Kavya have now?
  40. 40.Lakshmi has 12 marbles and gets 6 marbles more. How many marbles does Lakshmi have now?

Answer key

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

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