An algebra problem by Charlotte Milanese

Algebra Level pending

5 × 6 × 0.5 × 43 × 0.6 = ? 5\times6\times0.5\times43×0.6 = \, ?

Bonus: Solve this without using any pen or paper.

387 386 385 388 389

Charlotte Milanese by Charlotte Milanese , 17, USA

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2 solutions

Prokash Shakkhar
Dec 24, 2016

If you are tricky, you can just do it in your head!Apply 5*6=30* 43=1290* \frac{1}{2} =645*\frac{3}{5}= \boxed{\color\red{387}}

1 Helpful 0 Interesting 0 Brilliant 0 Confused

yeah I am not that good at calculating in my head though

Charlotte Milanese - 4 years, 5 months ago

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It's not so great problem enough..

Prokash Shakkhar - 4 years, 5 months ago

What do u mean ?

Charlotte Milanese - 4 years, 5 months ago

all you need for this one is your brain, paper and pencil, and a calculator! let me know if youy found this one too easy so next time I can make it a little harder ! :)

0 Helpful 0 Interesting 0 Brilliant 0 Confused

More fun if you do it in your head :)

Steven Chase - 4 years, 5 months ago

yeah it is ! was this one too hard or too easy ? Just wondering . :)

Charlotte Milanese - 4 years, 5 months ago

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It's fine. There is no such thing as "too hard" or "too easy". As long as the rating more or less reflects the difficulty.

Steven Chase - 4 years, 5 months ago

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yeah that's true

Charlotte Milanese - 4 years, 5 months ago

If you can find some creative calculation problems, that would be great!

Michael Huang - 4 years, 5 months ago

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ok so you like this style of problems i'm posting

Charlotte Milanese - 4 years, 5 months ago

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