← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 761 · 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 + ? = 14
  2. 2.5 + 5 + 7 =
  3. 3.15 + 5 =
  4. 4.5 + 2 + 5 =
  5. 5.Pooja has 7 balloons and gets 8 balloons more. How many balloons does Pooja have now?
  6. 6.4 + 16 =
  7. 7.12 + 6 =
  8. 8.Priya has 7 bananas and gets 2 bananas more. How many bananas does Priya have now?
  9. 9.11 + 1 =
  10. 10.3 + ? = 12
  11. 11.Vivaan has 3 balloons and gets 1 balloon more. How many balloons does Vivaan have now?
  12. 12.10 + 6 =
  13. 13.2 + ? = 3
  14. 14.? + 8 = 14
  15. 15.? + 1 = 11
  16. 16.There are 2 blue beads and 16 yellow beads. How many beads are there in all?
  17. 17.There are 9 yellow kites and 10 blue kites. How many kites are there in all?
  18. 18.6 + 1 + 3 =
  19. 19.Sneha has 2 mangoes and gets 1 mango more. How many mangoes does Sneha have now?
  20. 20.8 + 11 =
  21. 21.Saanvi has 11 crayons and gets 6 crayons more. How many crayons does Saanvi have now?
  22. 22.5 + 5 + 5 =
  23. 23.? + 6 = 7
  24. 24.7 + 4 + 2 =
  25. 25.15 + 2 =
  26. 26.1 + 10 =
  27. 27.18 + 1 =
  28. 28.Arjun has 13 books and gets 1 book more. How many books does Arjun have now?
  29. 29.7 + 7 + 4 =
  30. 30.Zoya has 13 mangoes and gets 7 mangoes more. How many mangoes does Zoya have now?
  31. 31.There are 12 green balls and 8 red balls. How many balls are there in all?
  32. 32.There are 12 green kites and 5 white kites. How many kites are there in all?
  33. 33.There are 6 red flowers and 2 yellow flowers. How many flowers are there in all?
  34. 34.5 + 1 =
  35. 35.5 + 7 =
  36. 36.3 + ? = 18
  37. 37.There are 12 red balloons and 2 green balloons. How many balloons are there in all?
  38. 38.3 + ? = 4
  39. 39.1 + 11 =
  40. 40.3 + 1 + 2 =

Answer key

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

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