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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 298 · 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.Priya has 7 balls and gets 12 balls more. How many balls does Priya have now?
  2. 2.Manav has 2 balloons and gets 17 balloons more. How many balloons does Manav have now?
  3. 3.? + 3 = 14
  4. 4.There are 12 pink balloons and 7 red balloons. How many balloons are there in all?
  5. 5.4 + 4 + 4 =
  6. 6.Dev has 6 shells and gets 1 shell more. How many shells does Dev have now?
  7. 7.2 + 4 + 13 =
  8. 8.1 + 2 + 6 =
  9. 9.Karan has 14 balloons and gets 2 balloons more. How many balloons does Karan have now?
  10. 10.6 + 12 =
  11. 11.8 + 3 + 3 =
  12. 12.Priya has 7 flowers and gets 2 flowers more. How many flowers does Priya have now?
  13. 13.6 + 4 =
  14. 14.There are 10 yellow flowers and 4 red flowers. How many flowers are there in all?
  15. 15.6 + 1 + 8 =
  16. 16.14 + 3 =
  17. 17.Saanvi has 6 shells and gets 6 shells more. How many shells does Saanvi have now?
  18. 18.7 + 2 + 3 =
  19. 19.6 + 4 + 4 =
  20. 20.There are 7 pink balloons and 4 red balloons. How many balloons are there in all?
  21. 21.There are 12 red balls and 3 pink balls. How many balls are there in all?
  22. 22.Kabir has 3 mangoes and gets 13 mangoes more. How many mangoes does Kabir have now?
  23. 23.11 + ? = 14
  24. 24.Farhan has 3 pencils and gets 11 pencils more. How many pencils does Farhan have now?
  25. 25.6 + 11 =
  26. 26.14 + 6 =
  27. 27.Ishaan has 12 shells and gets 5 shells more. How many shells does Ishaan have now?
  28. 28.2 + 7 + 4 =
  29. 29.Aarav has 2 mangoes and gets 15 mangoes more. How many mangoes does Aarav have now?
  30. 30.17 + ? = 18
  31. 31.4 + 8 + 6 =
  32. 32.7 + 1 + 5 =
  33. 33.8 + 6 + 4 =
  34. 34.8 + 1 =
  35. 35.16 + ? = 20
  36. 36.Isha has 4 kites and gets 6 kites more. How many kites does Isha have now?
  37. 37.15 + 5 =
  38. 38.4 + 3 + 5 =
  39. 39.19 + 1 =
  40. 40.? + 2 = 4

Answer key

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

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