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Use compatible number to estimate the sum of 428+286
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Apr 23, 2016
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Use compatible number to estimate the sum of 428+286
Mathematics
middle-school
Mark Segal
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My real answer is 712 but it estimate to 700.
Aleks Tkachenko
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Apr 26, 2016
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Aleks Tkachenko
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7
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428
+286
714 that is your answer
Markus Safar
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Apr 29, 2016
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Markus Safar
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