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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 533 · 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. 2.11 + 2 =
  3. 3.2 + 4 =
  4. 4.9 + 6 =
  5. 5.Lakshmi has 5 kites and gets 4 kites more. How many kites does Lakshmi have now?
  6. 6.1 + 7 =
  7. 7.9 + ? = 13
  8. 8.17 + 3 =
  9. 9.Dev has 14 bananas and gets 3 bananas more. How many bananas does Dev have now?
  10. 10.11 + 7 =
  11. 11.? + 2 = 3
  12. 12.11 + 4 =
  13. 13.6 + 12 =
  14. 14.1 + 4 =
  15. 15.Vivaan has 14 shells and gets 3 shells more. How many shells does Vivaan have now?
  16. 16.? + 2 = 20
  17. 17.4 + 4 + 5 =
  18. 18.12 + ? = 20
  19. 19.Ishaan has 14 crayons and gets 5 crayons more. How many crayons does Ishaan have now?
  20. 20.5 + 4 + 7 =
  21. 21.19 + 1 =
  22. 22.There are 2 blue kites and 7 red kites. How many kites are there in all?
  23. 23.12 + 6 =
  24. 24.There are 11 white beads and 3 pink beads. How many beads are there in all?
  25. 25.Kavya has 15 mangoes and gets 1 mango more. How many mangoes does Kavya have now?
  26. 26.There are 4 red crayons and 11 green crayons. How many crayons are there in all?
  27. 27.3 + 3 =
  28. 28.There are 7 blue kites and 8 yellow kites. How many kites are there in all?
  29. 29.There are 10 red balloons and 10 white balloons. How many balloons are there in all?
  30. 30.Riya has 4 flowers and gets 10 flowers more. How many flowers does Riya have now?
  31. 31.? + 9 = 11
  32. 32.1 + 8 + 10 =
  33. 33.Rahul has 8 balls and gets 2 balls more. How many balls does Rahul have now?
  34. 34.There are 12 yellow balloons and 7 white balloons. How many balloons are there in all?
  35. 35.1 + 8 + 3 =
  36. 36.Saanvi has 12 bananas and gets 4 bananas more. How many bananas does Saanvi have now?
  37. 37.1 + 5 + 1 =
  38. 38.There are 11 red flowers and 2 green flowers. How many flowers are there in all?
  39. 39.14 + 6 =
  40. 40.There are 11 pink balloons and 6 white balloons. How many balloons are there in all?

Answer key

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

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