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Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 672 · 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 2 blue crayons and 8 pink crayons. How many crayons are there in all?
  2. 2.Manav has 8 balls and gets 11 balls more. How many balls does Manav have now?
  3. 3.1 + 18 =
  4. 4.There are 5 red flowers and 3 yellow flowers. How many flowers are there in all?
  5. 5.Joseph has 3 laddoos and gets 5 laddoos more. How many laddoos does Joseph have now?
  6. 6.2 + 5 + 12 =
  7. 7.There are 12 white flowers and 3 yellow flowers. How many flowers are there in all?
  8. 8.15 + 2 =
  9. 9.There are 12 white flowers and 2 green flowers. How many flowers are there in all?
  10. 10.There are 12 green balloons and 7 pink balloons. How many balloons are there in all?
  11. 11.5 + 3 =
  12. 12.Diya has 8 mangoes and gets 1 mango more. How many mangoes does Diya have now?
  13. 13.9 + ? = 11
  14. 14.There are 11 pink beads and 7 white beads. How many beads are there in all?
  15. 15.11 + 8 =
  16. 16.There are 5 yellow balls and 5 blue balls. How many balls are there in all?
  17. 17.There are 8 green flowers and 3 yellow flowers. How many flowers are there in all?
  18. 18.6 + 13 =
  19. 19.? + 4 = 5
  20. 20.? + 6 = 12
  21. 21.2 + 1 =
  22. 22.Ananya has 5 laddoos and gets 11 laddoos more. How many laddoos does Ananya have now?
  23. 23.Gurpreet has 3 mangoes and gets 7 mangoes more. How many mangoes does Gurpreet have now?
  24. 24.6 + 6 =
  25. 25.8 + 2 + 2 =
  26. 26.3 + 16 =
  27. 27.? + 2 = 4
  28. 28.? + 17 = 18
  29. 29.9 + 6 =
  30. 30.There are 4 blue balloons and 3 red balloons. How many balloons are there in all?
  31. 31.2 + 5 + 8 =
  32. 32.Vivaan has 4 laddoos and gets 7 laddoos more. How many laddoos does Vivaan have now?
  33. 33.There are 2 blue flowers and 2 white flowers. How many flowers are there in all?
  34. 34.There are 4 pink balls and 5 white balls. How many balls are there in all?
  35. 35.4 + 6 =
  36. 36.7 + 2 =
  37. 37.There are 3 yellow beads and 2 pink beads. How many beads are there in all?
  38. 38.1 + 7 + 9 =
  39. 39.Karan has 12 mangoes and gets 6 mangoes more. How many mangoes does Karan have now?
  40. 40.There are 8 yellow balls and 6 red balls. How many balls are there in all?

Answer key

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

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