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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 576 · 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.? + 4 = 6
  2. 2.4 + 8 + 5 =
  3. 3.2 + ? = 8
  4. 4.There are 6 pink flowers and 12 white flowers. How many flowers are there in all?
  5. 5.5 + ? = 15
  6. 6.9 + ? = 11
  7. 7.Saanvi has 14 bananas and gets 1 banana more. How many bananas does Saanvi have now?
  8. 8.14 + 4 =
  9. 9.? + 3 = 5
  10. 10.? + 10 = 15
  11. 11.17 + 2 =
  12. 12.There are 8 green crayons and 4 blue crayons. How many crayons are there in all?
  13. 13.There are 9 blue balloons and 11 green balloons. How many balloons are there in all?
  14. 14.8 + 3 =
  15. 15.6 + ? = 9
  16. 16.There are 10 white kites and 4 pink kites. How many kites are there in all?
  17. 17.Karan has 4 flowers and gets 2 flowers more. How many flowers does Karan have now?
  18. 18.4 + 14 =
  19. 19.8 + ? = 12
  20. 20.19 + 1 =
  21. 21.1 + 5 + 6 =
  22. 22.18 + 1 =
  23. 23.9 + 7 =
  24. 24.There are 4 pink kites and 6 white kites. How many kites are there in all?
  25. 25.Karan has 7 laddoos and gets 6 laddoos more. How many laddoos does Karan have now?
  26. 26.6 + 3 =
  27. 27.There are 2 blue flowers and 13 yellow flowers. How many flowers are there in all?
  28. 28.4 + 16 =
  29. 29.There are 3 blue crayons and 5 green crayons. How many crayons are there in all?
  30. 30.14 + ? = 19
  31. 31.Priya has 13 crayons and gets 6 crayons more. How many crayons does Priya have now?
  32. 32.3 + 15 =
  33. 33.1 + ? = 9
  34. 34.Diya has 14 balloons and gets 1 balloon more. How many balloons does Diya have now?
  35. 35.3 + 2 + 8 =
  36. 36.9 + ? = 15
  37. 37.? + 6 = 11
  38. 38.Dev has 9 bananas and gets 9 bananas more. How many bananas does Dev have now?
  39. 39.5 + 4 =
  40. 40.Saanvi has 2 kites and gets 15 kites more. How many kites does Saanvi have now?

Answer key

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

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