children make this mistake twenty eight- twenty nine- twenty ten- twenty eleven why?

Answer 1

Becasue they're repeating the eight-nine-ten-eleven sequence that they've had drilled into them. They haven't quite (as yet) grasped the concept of the 2'nd place over holding units of 10's.


Doug

Answer 2

When children first learn to count, they learn the first 10 or 15 numbers. Then when they get to numbers with two words like twenty (eight), twenty (nine) and so on, they listen two the last part of the word, and they assume that the number will continue as one of the numbers they learned earlier. ( 8, 9, 10,...) or at least that's my theory.

Answer 3

Formally there is no mistake, I mean children have a strong logic! Take French for example:
They say sixty eight, sixty nine, sixty ten, sixty eleven, ,,, until sixty nineteen, then eighty, eighty one, eighty two, ,,, until eighty nineteen. If you say seventy two or ninety five, the French will know at once you are a foreigner no matter how good you speak French. Tradition!

Answer 4

It's intuitive - and it just plain makes sense.

After all, twenty-ten and twenty-eleven is thirty and thirty-one, respectively.

Answer 5

My son tell eleventeen, twleveteen, thirteen when he was 3 years old.