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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 844 · 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. 1.3 + 7 =
  2. 2.3 + 2 =
  3. 3.17 + 2 =
  4. 4.2 + 6 + 4 =
  5. 5.8 + ? = 12
  6. 6.There are 9 green crayons and 2 pink crayons. How many crayons are there in all?
  7. 7.8 + 7 =
  8. 8.8 + 7 + 1 =
  9. 9.Sneha has 15 bananas and gets 3 bananas more. How many bananas does Sneha have now?
  10. 10.16 + 4 =
  11. 11.2 + ? = 7
  12. 12.9 + 7 =
  13. 13.There are 9 yellow crayons and 11 pink crayons. How many crayons are there in all?
  14. 14.Kabir has 14 shells and gets 6 shells more. How many shells does Kabir have now?
  15. 15.There are 8 blue flowers and 4 green flowers. How many flowers are there in all?
  16. 16.Gurpreet has 11 laddoos and gets 4 laddoos more. How many laddoos does Gurpreet have now?
  17. 17.Riya has 10 bananas and gets 7 bananas more. How many bananas does Riya have now?
  18. 18.? + 9 = 17
  19. 19.There are 4 red beads and 11 pink beads. How many beads are there in all?
  20. 20.4 + 6 + 1 =
  21. 21.11 + 5 =
  22. 22.Gurpreet has 11 kites and gets 1 kite more. How many kites does Gurpreet have now?
  23. 23.? + 2 = 4
  24. 24.9 + 9 =
  25. 25.There are 4 blue crayons and 4 green crayons. How many crayons are there in all?
  26. 26.Nisha has 15 mangoes and gets 1 mango more. How many mangoes does Nisha have now?
  27. 27.1 + 10 =
  28. 28.2 + 5 + 8 =
  29. 29.Gurpreet has 7 laddoos and gets 13 laddoos more. How many laddoos does Gurpreet have now?
  30. 30.There are 10 yellow balloons and 8 red balloons. How many balloons are there in all?
  31. 31.There are 6 green balloons and 4 blue balloons. How many balloons are there in all?
  32. 32.There are 5 green beads and 8 red beads. How many beads are there in all?
  33. 33.1 + ? = 9
  34. 34.? + 3 = 7
  35. 35.8 + 1 + 9 =
  36. 36.Sneha has 8 bananas and gets 9 bananas more. How many bananas does Sneha have now?
  37. 37.3 + 8 + 3 =
  38. 38.? + 2 = 3
  39. 39.? + 4 = 13
  40. 40.There are 10 blue crayons and 3 white crayons. How many crayons are there in all?

Answer key

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

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