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OpenStudy (anonymous):
Estimate by rounding to the nearest hundred. 923 - 466
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OpenStudy (asadkarim7):
900 - 500 = 400
OpenStudy (anonymous):
do they want you to round at the end or right away? you get different answers both ways
OpenStudy (anonymous):
oh never mind they are asking you to estimate, asadkarim is right
OpenStudy (saifoo.khan):
900 - 500 = 400
OpenStudy (anonymous):
Asad is right... the calculation does not become easy if we first find the difference and then round off...
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OpenStudy (anonymous):
yep
OpenStudy (anonymous):
Estimate the answer by clustering. 725 + 676 + 712 + 729
OpenStudy (anonymous):
first two 700+700 = 1400 last two 700 + 700 = 1400 total 2800
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