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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 937 · 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. 1.2 + 13 =
  2. 2.5 + 2 + 9 =
  3. 3.There are 12 pink balls and 5 yellow balls. How many balls are there in all?
  4. 4.Priya has 14 flowers and gets 2 flowers more. How many flowers does Priya have now?
  5. 5.There are 3 blue balloons and 3 red balloons. How many balloons are there in all?
  6. 6.8 + 6 =
  7. 7.There are 7 yellow balloons and 3 pink balloons. How many balloons are there in all?
  8. 8.7 + 3 + 3 =
  9. 9.? + 5 = 16
  10. 10.5 + 6 + 2 =
  11. 11.Sneha has 2 bananas and gets 7 bananas more. How many bananas does Sneha have now?
  12. 12.3 + 11 =
  13. 13.9 + 9 =
  14. 14.There are 10 pink balloons and 6 white balloons. How many balloons are there in all?
  15. 15.Saanvi has 12 crayons and gets 6 crayons more. How many crayons does Saanvi have now?
  16. 16.Dev has 10 mangoes and gets 7 mangoes more. How many mangoes does Dev have now?
  17. 17.? + 3 = 17
  18. 18.8 + 3 + 8 =
  19. 19.There are 8 blue crayons and 6 red crayons. How many crayons are there in all?
  20. 20.5 + ? = 11
  21. 21.Tara has 7 mangoes and gets 10 mangoes more. How many mangoes does Tara have now?
  22. 22.1 + 2 + 7 =
  23. 23.12 + 3 =
  24. 24.2 + 8 + 9 =
  25. 25.9 + ? = 16
  26. 26.Rahul has 4 pencils and gets 4 pencils more. How many pencils does Rahul have now?
  27. 27.4 + 4 + 5 =
  28. 28.Farhan has 9 balls and gets 11 balls more. How many balls does Farhan have now?
  29. 29.Farhan has 13 marbles and gets 6 marbles more. How many marbles does Farhan have now?
  30. 30.6 + 8 =
  31. 31.Sneha has 4 mangoes and gets 5 mangoes more. How many mangoes does Sneha have now?
  32. 32.There are 6 green balloons and 12 yellow balloons. How many balloons are there in all?
  33. 33.8 + 7 =
  34. 34.Zoya has 8 balls and gets 4 balls more. How many balls does Zoya have now?
  35. 35.There are 3 white balloons and 10 yellow balloons. How many balloons are there in all?
  36. 36.Kabir has 9 bananas and gets 4 bananas more. How many bananas does Kabir have now?
  37. 37.4 + 8 =
  38. 38.1 + 2 + 12 =
  39. 39.3 + 5 + 6 =
  40. 40.There are 6 blue kites and 10 yellow kites. How many kites are there in all?

Answer key

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

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