
TTC Video – Secrets of Mental Math [12 AVI + 1PDF]
English | Size: 2.54 GB (2,724,096,232 Bytes)
Category: Tutorial
Quick: What’s 25 x 45?
How about 742 x 300?
Or 4821 ÷ 9? Most of us, when faced with math problems like these, immediately reach for a calculator or a pen.
But imagine if you could perform these and other seemingly difficult-but surprisingly easy-calculations right in your head.
Seems like an impossible feat? It’s not.
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