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Mathematics 7 Online
OpenStudy (anonymous):

Which of the following is the best estimate of 4 and one-eighth minus 1 and nine-tenths? 2 3 and one-half 3 2 and one-half

OpenStudy (ranga):

4 and one-eighth can be rounded down to 4 1 and nine-tenths can be rounded up to 2 subtract: 4 - 2 = 2 is the best estimate.

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