Which is the best estimate for 48.8 ÷ 9.9?
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The nearby convenient division is 50 ÷ 10 = 5, so 5 is the best estimate. Choosing 500 multiplies the benchmarks, while 0.5 shifts the expected quotient one decimal place too far left.
The nearby convenient division is 50 ÷ 10 = 5, so 5 is the best estimate. Choosing 500 multiplies the benchmarks, while 0.5 shifts the expected quotient one decimal place too far left.