hohoho0011
hohoho0011 hohoho0011
  • 22-08-2016
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what is the best estimate for the product of 289 and 7?

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nerdsrule
nerdsrule nerdsrule
  • 23-08-2016
I'd say about 2,900  Here is how I did it. 289 is very close to 290. So that becomes 290. And 7 is close to 10. So you multiply 10 and 290 and you get 2,900. Here is something to remember how to round.

4 or less, let it rest. 5 or more, RAISE the score! 
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