Estimation: word problems

Tricky questions about everyday objects. A calculator might help with some of these.

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Number lines with numbers only at each end make it tricky to say where the arrows are placed. Some degree of error has to expected with this task!

Judge which is the best approximate answer by rounding numbers.

Rounding county populations to the nearest 10 000 and 100 000.

Rounding numbers in the hundreds of thousands to the nearest, 100, 1 000, 10 000 and 100 000.

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