Writing to explain.Kevin wants to buy a new stereo for $ 239.so far, he has saved $115. Explain how you can use mental math to find out how many more money Kevin needs to save

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asked Apr 15, 2015 42.2k views

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Pablo Gonzalez · Answer 1 · 2015-04-19T13:09:44+0000

You would estimate.

So round 239 to 240, and 115 to 110.

240 - 110 = $130

No work out the difference from 239 to 240 ($1) and 115 to 110 ($5), and subtract those from the answer

$130 - $5 - $1 = $124

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Writing to explain.Kevin wants to buy a new stereo for $ 239.so far, he has saved $115. Explain how you can use mental math to find out how many more money Kevin needs to save

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