Q115 of 196 Page 249

Express each of the following in standard form:

Express 56 km in m.

Given that,56 km = 56 × 1000 m (∵ 1 km = 1000 m)


= 56000 m


Standard form = 56 × 103


= 5.6 × 101 × 103


Using the law of exponent,


= 5.6 × 104 m


∴ The standard form is 5.6 × 104 m


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