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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 467 · 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 11 pink beads and 5 red beads. How many beads are there in all?
  2. 2.There are 11 red flowers and 7 blue flowers. How many flowers are there in all?
  3. 3.There are 12 red balls and 6 blue balls. How many balls are there in all?
  4. 4.12 + ? = 14
  5. 5.There are 7 green balloons and 11 yellow balloons. How many balloons are there in all?
  6. 6.9 + 2 =
  7. 7.Nisha has 13 marbles and gets 5 marbles more. How many marbles does Nisha have now?
  8. 8.Isha has 5 balloons and gets 15 balloons more. How many balloons does Isha have now?
  9. 9.3 + 6 + 10 =
  10. 10.12 + 1 =
  11. 11.There are 10 yellow balls and 8 red balls. How many balls are there in all?
  12. 12.2 + 7 + 10 =
  13. 13.7 + 1 + 7 =
  14. 14.There are 6 red kites and 3 pink kites. How many kites are there in all?
  15. 15.There are 11 yellow beads and 4 white beads. How many beads are there in all?
  16. 16.4 + 1 + 14 =
  17. 17.9 + 4 =
  18. 18.1 + 8 + 4 =
  19. 19.Zoya has 9 laddoos and gets 5 laddoos more. How many laddoos does Zoya have now?
  20. 20.? + 2 = 20
  21. 21.6 + ? = 12
  22. 22.Kavya has 2 flowers and gets 1 flower more. How many flowers does Kavya have now?
  23. 23.2 + 8 =
  24. 24.4 + 6 =
  25. 25.There are 2 white balloons and 14 pink balloons. How many balloons are there in all?
  26. 26.14 + 6 =
  27. 27.Rahul has 11 crayons and gets 7 crayons more. How many crayons does Rahul have now?
  28. 28.Diya has 10 kites and gets 1 kite more. How many kites does Diya have now?
  29. 29.There are 10 green balls and 8 pink balls. How many balls are there in all?
  30. 30.14 + 4 =
  31. 31.There are 7 blue flowers and 10 green flowers. How many flowers are there in all?
  32. 32.8 + 4 =
  33. 33.Pooja has 13 books and gets 5 books more. How many books does Pooja have now?
  34. 34.There are 4 green beads and 12 white beads. How many beads are there in all?
  35. 35.5 + ? = 14
  36. 36.17 + 1 =
  37. 37.6 + 1 + 8 =
  38. 38.? + 7 = 17
  39. 39.Dev has 3 mangoes and gets 7 mangoes more. How many mangoes does Dev have now?
  40. 40.There are 10 white crayons and 7 red crayons. How many crayons are there in all?

Answer key

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

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