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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 161 · 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 12 green flowers and 8 pink flowers. How many flowers are there in all?
  2. 2.? + 3 = 9
  3. 3.There are 2 yellow beads and 2 blue beads. How many beads are there in all?
  4. 4.12 + ? = 13
  5. 5.There are 3 green flowers and 16 white flowers. How many flowers are there in all?
  6. 6.Riya has 7 kites and gets 1 kite more. How many kites does Riya have now?
  7. 7.1 + ? = 3
  8. 8.14 + 3 =
  9. 9.14 + 6 =
  10. 10.15 + 2 =
  11. 11.3 + 6 =
  12. 12.Karan has 6 kites and gets 5 kites more. How many kites does Karan have now?
  13. 13.4 + 14 =
  14. 14.Dev has 6 pencils and gets 10 pencils more. How many pencils does Dev have now?
  15. 15.7 + ? = 20
  16. 16.There are 4 pink kites and 9 yellow kites. How many kites are there in all?
  17. 17.2 + 3 + 4 =
  18. 18.12 + 4 =
  19. 19.? + 1 = 6
  20. 20.Gurpreet has 5 books and gets 5 books more. How many books does Gurpreet have now?
  21. 21.2 + 7 =
  22. 22.4 + ? = 6
  23. 23.Aarav has 7 shells and gets 13 shells more. How many shells does Aarav have now?
  24. 24.3 + ? = 6
  25. 25.Riya has 10 kites and gets 8 kites more. How many kites does Riya have now?
  26. 26.There are 2 pink beads and 5 white beads. How many beads are there in all?
  27. 27.Diya has 10 crayons and gets 8 crayons more. How many crayons does Diya have now?
  28. 28.There are 8 yellow kites and 10 pink kites. How many kites are there in all?
  29. 29.7 + ? = 14
  30. 30.1 + 3 + 2 =
  31. 31.19 + 1 =
  32. 32.There are 12 blue flowers and 3 pink flowers. How many flowers are there in all?
  33. 33.3 + 2 + 8 =
  34. 34.11 + 6 =
  35. 35.Kavya has 9 books and gets 11 books more. How many books does Kavya have now?
  36. 36.There are 5 white crayons and 15 green crayons. How many crayons are there in all?
  37. 37.There are 3 blue crayons and 16 red crayons. How many crayons are there in all?
  38. 38.11 + 8 =
  39. 39.Arjun has 2 marbles and gets 7 marbles more. How many marbles does Arjun have now?
  40. 40.? + 17 = 19

Answer key

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

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