← Addition up to 20 lesson New set →

Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 231 · 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 4 yellow flowers and 5 pink flowers. How many flowers are there in all?
  2. 2.4 + 7 + 1 =
  3. 3.1 + ? = 18
  4. 4.8 + 8 + 4 =
  5. 5.2 + 2 + 16 =
  6. 6.There are 5 green kites and 12 pink kites. How many kites are there in all?
  7. 7.There are 12 red balloons and 4 pink balloons. How many balloons are there in all?
  8. 8.5 + 4 + 2 =
  9. 9.11 + 9 =
  10. 10.There are 4 pink balls and 5 yellow balls. How many balls are there in all?
  11. 11.? + 13 = 14
  12. 12.4 + 5 =
  13. 13.2 + ? = 8
  14. 14.Tara has 13 marbles and gets 1 marble more. How many marbles does Tara have now?
  15. 15.Isha has 6 mangoes and gets 11 mangoes more. How many mangoes does Isha have now?
  16. 16.There are 5 white kites and 14 green kites. How many kites are there in all?
  17. 17.There are 10 yellow balloons and 3 white balloons. How many balloons are there in all?
  18. 18.12 + 1 =
  19. 19.15 + 4 =
  20. 20.4 + ? = 7
  21. 21.19 + 1 =
  22. 22.3 + 4 + 8 =
  23. 23.? + 8 = 11
  24. 24.18 + 2 =
  25. 25.3 + 9 =
  26. 26.6 + 2 + 10 =
  27. 27.13 + 2 =
  28. 28.? + 2 = 4
  29. 29.4 + 1 =
  30. 30.There are 8 pink beads and 9 white beads. How many beads are there in all?
  31. 31.Manav has 11 marbles and gets 9 marbles more. How many marbles does Manav have now?
  32. 32.12 + 3 =
  33. 33.5 + 1 + 14 =
  34. 34.There are 7 red flowers and 12 green flowers. How many flowers are there in all?
  35. 35.? + 10 = 18
  36. 36.2 + ? = 13
  37. 37.2 + 5 + 13 =
  38. 38.6 + 11 =
  39. 39.2 + 6 + 9 =
  40. 40.There are 4 pink balloons and 4 yellow balloons. How many balloons are there in all?

Answer key

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

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