Express $70 k m 8 m$ as $k i l o m e t r e s$ using decimals.

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Solution

Converting the given length into $(k i l o m e t r e) k m$ using decimals
$1000 m = 1 k m$
$∴ 1 m = \frac{1}{1000} k m$ (By unitary method)
$8 m = 8 \times \frac{1}{1000} = \frac{8}{1000} = 0.008 k m$
$70 k m = 70.000 k m$
$70.000 + 0.008 70.008$ (Adding as like decimals)
Hence, $70 k m 8 m = 70.008 k m$ .

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