Q : 4    Express as km using decimals.

            (a) 8 m     (b) 88 m     (c) 8888 m     (d) 70 km 5 m 

Answers (1)

As we know,

1 km = 1000 m 

which means 

1\:m=\frac{1}{1000}\:km

So,

(a) 8 m   

    8\:m=8\times\frac{1}{1000}=\frac{8}{1000}=0.008\:km 

(b) 88 m     

      88\:m=88\times\frac{1}{1000}=\frac{88}{1000}=0.088\:km

(c) 8888 m     

     8888\:m=8888\times\frac{1}{1000}=\frac{8888}{1000}=8.888\:km

(d) 70 km 5 m 

     70\:km+5\:m=70+5\times\frac{1}{1000}=70+\frac{5}{1000}=70+0.005=70.005\:km

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