Create a free account now and get 3 full lessons, completely free. Get my 3 free lessons

Worldwide
Practise online insteadThe answer key prints on page 2.

Add tens

Grade 1 math · Fieldbook Learning

Name ______________________ Date __________

Think of tens as single objects: 3 tens + 2 tens = 5 tens.

  1. Mo asks: 30 + 30 =
  2. Lia wonders: 50 + 50 =
  3. Ivy thinks: 10 + 20 =
  4. Ben asks: 50 + 40 =
  5. Pia thinks: 60 + 10 =
  6. Chen says: 80 + 20 =
  7. Ben wonders: 60 + 20 =
  8. Mo wonders: 30 + 10 =
  9. Kai wonders: 90 + 10 =
  10. Pia thinks: 40 + 60 =
  11. Fay wonders: 60 + □ = 70
  12. Omar asks: 30 + □ = 90
  13. Ana wonders: 60 + □ = 70
  14. Eli asks: 80 + □ = 90
  15. Omar wonders: 20 + □ = 90
  16. Eli wonders: 80 + □ = 90
  17. Jon asks: 10 + □ = 30
  18. Dara asks: 30 + □ = 80
  19. Jon wonders: 10 + □ = 90
  20. Ivy thinks: 20 + □ = 50
More free practice: fieldbooklearning.com/practice/grade-1/add-tens/

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.
Download CSV

Answer key: Add tens

  1. 60
  2. 100
  3. 30
  4. 90
  5. 70
  6. 100
  7. 80
  8. 40
  9. 100
  10. 100
  11. 10
  12. 60
  13. 10
  14. 10
  15. 70
  16. 10
  17. 20
  18. 50
  19. 80
  20. 30