Counting by Tens to 100

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  1. 0 + 10 + 10 = 20
  2. 10 + 10 + 10 = 30
  3. 20 + 10 + 10 = 40
  4. 30 + 10 + 10 = 50
  5. 40 + 10 + 10 = 60
  6. 50 + 10 + 10 = 70
  7. 60 + 10 + 10 = 80
  8. 70 + 10 + 10 = 90
  9. 80 + 10 + 10 = 100