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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 366 · 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. 1.8 + 7 + 1 =
  2. 2.17 + 2 =
  3. 3.1 + 1 + 9 =
  4. 4.4 + ? = 6
  5. 5.There are 12 pink beads and 2 red beads. How many beads are there in all?
  6. 6.3 + 6 + 3 =
  7. 7.6 + 4 + 9 =
  8. 8.5 + ? = 9
  9. 9.There are 7 pink beads and 2 red beads. How many beads are there in all?
  10. 10.? + 15 = 19
  11. 11.7 + 6 + 2 =
  12. 12.8 + ? = 14
  13. 13.There are 6 green balloons and 6 pink balloons. How many balloons are there in all?
  14. 14.1 + 13 =
  15. 15.? + 13 = 14
  16. 16.Karan has 14 kites and gets 4 kites more. How many kites does Karan have now?
  17. 17.Tara has 15 balls and gets 1 ball more. How many balls does Tara have now?
  18. 18.Rohan has 10 mangoes and gets 2 mangoes more. How many mangoes does Rohan have now?
  19. 19.? + 4 = 20
  20. 20.There are 2 blue kites and 14 pink kites. How many kites are there in all?
  21. 21.7 + 3 =
  22. 22.Vivaan has 12 bananas and gets 1 banana more. How many bananas does Vivaan have now?
  23. 23.Dev has 5 shells and gets 15 shells more. How many shells does Dev have now?
  24. 24.Rahul has 3 pencils and gets 17 pencils more. How many pencils does Rahul have now?
  25. 25.12 + 5 =
  26. 26.Karan has 7 pencils and gets 3 pencils more. How many pencils does Karan have now?
  27. 27.Vivaan has 4 balls and gets 12 balls more. How many balls does Vivaan have now?
  28. 28.12 + 2 =
  29. 29.7 + 5 + 7 =
  30. 30.10 + ? = 15
  31. 31.? + 5 = 13
  32. 32.6 + ? = 19
  33. 33.? + 7 = 11
  34. 34.6 + ? = 16
  35. 35.6 + 1 + 10 =
  36. 36.3 + 1 =
  37. 37.7 + 1 + 9 =
  38. 38.There are 10 white beads and 9 yellow beads. How many beads are there in all?
  39. 39.Saanvi has 12 crayons and gets 5 crayons more. How many crayons does Saanvi have now?
  40. 40.2 + 15 =

Answer key

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

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