The simplest thing English speakers could do is get rid of the spoken words for 10 - 19 entirely. But what would you replace them with?

Tenty-one, tenty-two, ect? No. It sounds two much like twenty-one, twenty-two, and so on.

Replacing the tens with "onty" words makes sense because "on" is closer "one". There's no translation step needed in thinking "Onty-eight minus Onty-two" and coming out with six.

It would be a simple solution to the tens problem but hard with respect to getting people to adopt it.