[NativeSon]

These are not large numbers.

Of course, the kids gotta start somewhere; I still don't think that it is a good idea to teach that process early on.

"ballpark numbers" - like approximating at infinity in diffy Q

[a fool in paradise]

The numbers don’t even have to be that large to see if they grasp the concept.

3x7=?

a) 1
b) 10
c) 21
d) 98