← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 924 · 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 2 blue balloons and 9 red balloons. How many balloons are there in all?
  2. 2.10 + 6 =
  3. 3.1 + 6 =
  4. 4.? + 1 = 5
  5. 5.14 + 3 =
  6. 6.4 + 3 + 12 =
  7. 7.There are 3 blue balloons and 11 green balloons. How many balloons are there in all?
  8. 8.There are 4 white flowers and 14 red flowers. How many flowers are there in all?
  9. 9.11 + ? = 19
  10. 10.Arjun has 8 crayons and gets 11 crayons more. How many crayons does Arjun have now?
  11. 11.There are 7 blue kites and 12 yellow kites. How many kites are there in all?
  12. 12.14 + 2 =
  13. 13.Priya has 12 books and gets 1 book more. How many books does Priya have now?
  14. 14.Riya has 15 pencils and gets 2 pencils more. How many pencils does Riya have now?
  15. 15.? + 3 = 15
  16. 16.Aarav has 5 balloons and gets 9 balloons more. How many balloons does Aarav have now?
  17. 17.Vivaan has 15 marbles and gets 1 marble more. How many marbles does Vivaan have now?
  18. 18.1 + ? = 6
  19. 19.Lakshmi has 2 flowers and gets 10 flowers more. How many flowers does Lakshmi have now?
  20. 20.3 + ? = 8
  21. 21.3 + 5 + 8 =
  22. 22.2 + 5 + 7 =
  23. 23.8 + 11 =
  24. 24.There are 7 blue kites and 4 green kites. How many kites are there in all?
  25. 25.? + 5 = 16
  26. 26.4 + 1 + 6 =
  27. 27.8 + 3 =
  28. 28.Ananya has 3 crayons and gets 11 crayons more. How many crayons does Ananya have now?
  29. 29.5 + 8 + 2 =
  30. 30.1 + 6 + 2 =
  31. 31.There are 7 yellow beads and 7 pink beads. How many beads are there in all?
  32. 32.6 + 7 + 2 =
  33. 33.17 + 3 =
  34. 34.1 + 8 + 3 =
  35. 35.1 + 11 =
  36. 36.? + 6 = 7
  37. 37.Pooja has 14 mangoes and gets 2 mangoes more. How many mangoes does Pooja have now?
  38. 38.? + 2 = 6
  39. 39.18 + 2 =
  40. 40.4 + ? = 19

Answer key

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

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