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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 94 · 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. 1.2 + 8 + 1 =
  2. 2.There are 2 blue balloons and 6 red balloons. How many balloons are there in all?
  3. 3.Rahul has 4 marbles and gets 8 marbles more. How many marbles does Rahul have now?
  4. 4.Isha has 12 pencils and gets 8 pencils more. How many pencils does Isha have now?
  5. 5.There are 9 red balloons and 4 pink balloons. How many balloons are there in all?
  6. 6.9 + 5 =
  7. 7.2 + 5 + 5 =
  8. 8.9 + 4 =
  9. 9.6 + 6 + 8 =
  10. 10.There are 3 pink balls and 2 white balls. How many balls are there in all?
  11. 11.There are 6 green balls and 5 red balls. How many balls are there in all?
  12. 12.Gurpreet has 14 kites and gets 3 kites more. How many kites does Gurpreet have now?
  13. 13.19 + 1 =
  14. 14.Rohan has 8 crayons and gets 5 crayons more. How many crayons does Rohan have now?
  15. 15.? + 3 = 5
  16. 16.There are 8 red kites and 7 green kites. How many kites are there in all?
  17. 17.3 + 12 =
  18. 18.15 + 1 =
  19. 19.There are 8 red balls and 11 yellow balls. How many balls are there in all?
  20. 20.Manav has 9 marbles and gets 3 marbles more. How many marbles does Manav have now?
  21. 21.5 + ? = 9
  22. 22.2 + 6 + 2 =
  23. 23.There are 5 white balls and 12 pink balls. How many balls are there in all?
  24. 24.7 + 2 + 5 =
  25. 25.There are 4 red crayons and 12 pink crayons. How many crayons are there in all?
  26. 26.3 + ? = 17
  27. 27.12 + 5 =
  28. 28.4 + 16 =
  29. 29.4 + 1 + 8 =
  30. 30.There are 11 yellow flowers and 5 red flowers. How many flowers are there in all?
  31. 31.There are 8 pink beads and 4 red beads. How many beads are there in all?
  32. 32.18 + 2 =
  33. 33.Riya has 8 shells and gets 6 shells more. How many shells does Riya have now?
  34. 34.There are 2 yellow balloons and 13 blue balloons. How many balloons are there in all?
  35. 35.1 + 4 + 3 =
  36. 36.7 + 5 + 8 =
  37. 37.There are 11 green balloons and 5 yellow balloons. How many balloons are there in all?
  38. 38.13 + 7 =
  39. 39.Priya has 2 balloons and gets 16 balloons more. How many balloons does Priya have now?
  40. 40.Dev has 13 balls and gets 3 balls more. How many balls does Dev have now?

Answer key

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

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