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Mentally add 10s to two-digit numbers

Year 2 maths · Fieldbook Learning

Name ______________________ Date __________

Add the tens. The ones stay the same.

  1. Pia wonders: 33 + 40 =
  2. Omar asks: 12 + 20 =
  3. Dara thinks: 75 + 10 =
  4. Lia says: 28 + 70 =
  5. Lia says: 25 + 40 =
  6. Ivy asks: 17 + 20 =
  7. Hana wonders: 20 + 20 =
  8. Eli thinks: 36 + 10 =
  9. Ivy wonders: 66 + 20 =
  10. Mo asks: 28 + 30 =
  11. 58 + 30 =
  12. 68 + 10 =
  13. 38 + 60 =
  14. 35 + 50 =
  15. 85 + 10 =
  16. 74 + 20 =
  17. 37 + 10 =
  18. 16 + 10 =
  19. 58 + 40 =
  20. 28 + 10 =
More free practice: fieldbooklearning.com/au/practice/year-2/mentally-add-10s-to-two-digit-numbers/

Play it as a quiz game

20 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

  1. Download the game's own question template: in Kahoot, Add question → Import spreadsheet; in Blooket, Create a set → Spreadsheet import.
  2. Click the matching button below, then click the first empty question row of the template and paste.
  3. Save the template (Kahoot needs .xlsx, Blooket .csv) and upload it.
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Answer key: Mentally add 10s to two-digit numbers

  1. 73
  2. 32
  3. 85
  4. 98
  5. 65
  6. 37
  7. 40
  8. 46
  9. 86
  10. 58
  11. 88
  12. 78
  13. 98
  14. 85
  15. 95
  16. 94
  17. 47
  18. 26
  19. 98
  20. 38