Believe me.I can add up.
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velvet donkey posted:Believe me.I can add up.
I know you can
velvet donkey posted:Believe me.I can add up.
I have no doubt about that Velvet
Do they still practice it at schools these days? I sometimes wonder!
149 x 171 = 25479 and I've done that in my head without writing out anything or using a calculator or computer.
(that's easier than you might think if you remember that (x+y) * (x-y) = xΒ² - yΒ²)
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