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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 546 · 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 white kites and 5 yellow kites. How many kites are there in all?
  2. 2.2 + ? = 4
  3. 3.Gurpreet has 10 crayons and gets 7 crayons more. How many crayons does Gurpreet have now?
  4. 4.1 + ? = 3
  5. 5.Lakshmi has 11 laddoos and gets 8 laddoos more. How many laddoos does Lakshmi have now?
  6. 6.Manav has 15 kites and gets 1 kite more. How many kites does Manav have now?
  7. 7.8 + 2 + 2 =
  8. 8.7 + 5 + 7 =
  9. 9.? + 1 = 9
  10. 10.There are 2 green balls and 9 red balls. How many balls are there in all?
  11. 11.3 + 6 + 10 =
  12. 12.2 + 7 + 3 =
  13. 13.Riya has 12 marbles and gets 2 marbles more. How many marbles does Riya have now?
  14. 14.7 + 7 + 1 =
  15. 15.6 + 7 + 5 =
  16. 16.6 + 5 + 8 =
  17. 17.3 + ? = 10
  18. 18.9 + ? = 14
  19. 19.5 + ? = 19
  20. 20.18 + 1 =
  21. 21.Rahul has 13 bananas and gets 1 banana more. How many bananas does Rahul have now?
  22. 22.There are 4 white balls and 9 pink balls. How many balls are there in all?
  23. 23.Isha has 4 balls and gets 14 balls more. How many balls does Isha have now?
  24. 24.1 + 4 =
  25. 25.5 + ? = 6
  26. 26.There are 10 white crayons and 9 red crayons. How many crayons are there in all?
  27. 27.11 + ? = 17
  28. 28.5 + 7 + 2 =
  29. 29.There are 8 yellow beads and 10 green beads. How many beads are there in all?
  30. 30.? + 16 = 18
  31. 31.Karan has 13 pencils and gets 1 pencil more. How many pencils does Karan have now?
  32. 32.4 + 5 =
  33. 33.3 + 1 + 8 =
  34. 34.16 + 3 =
  35. 35.1 + 16 =
  36. 36.2 + 1 + 1 =
  37. 37.11 + 7 =
  38. 38.Aditya has 3 bananas and gets 17 bananas more. How many bananas does Aditya have now?
  39. 39.Vivaan has 14 crayons and gets 5 crayons more. How many crayons does Vivaan have now?
  40. 40.17 + 2 =

Answer key

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

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