3 ms·
That's why I'm suggesting you not bother memorizing 7 since there are higher numbers that provide similar utility for estimation but are much easier to memorize
by lukeschlather 11y ago
That's why I'm suggesting you not bother memorizing 7 since there are higher numbers that provide similar utility for estimation but are much easier to memorize.
- lmm 11y agoI don't think the times tables are for estimation.