thnx po sir sa pag share.

vThanks Bossing. Pabasa din.

Salamat sa share boss **** ako sa math eh baka dito ako tatalino hehe

naapply ko to nung high skul..effective
Nice po![]()
thanks sir for sharing

Secrets of Mental Math
(The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks)
Description:
Quick: What's 25 × 45? How about 742 × 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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