Question

The length of a car is 4.2m, correct to 1 decimal place. Write down the upper bound and lower bound of the length of this car.

Answer 1

$Given \: the \: length\: of \: a \:car\: is \: 4.2\:m$

$\blue { Lower \: bound :} 4.0 \:m$

$It \: is \: the \: smallest \: number \: that \: will \\round \: up \: to\: 1 \: decimal \: place .$

$\pink { Upper \: bound :} 4.5 \:m$

$It \: is \: the \: largest\: number \: that \: will \\round \: up \: to\: 1 \: decimal \: place .$

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