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Which is a good comparison of the estimated sum and the actual sum of seven nines twelfth plus two and eleven twelfth
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Which is a good comparison of the estimated sum and the actual sum of seven nines twelfth plus two and eleven twelfth

User Rlovtang
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that will be 12×11=132. 7×9=63. 63×12=756. 756+2=758. actual sum = 758. estimated sum = 800
User Lizzett
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