Week 5 – Math 10

This week I learnt a simple way to convert squared and cubed units. I had trouble converting 0.37 km^3 to m^3 , until I used this strategy:

1 km = 1000 m , or  10^3m

0.37\cdot 10^3 = 370000000

Written in scientific notation: 3.7\cdot 10^8

The same works for any exponent, all you need to know is the relationship between the two units:

60 yds^2  to  in^2

1 yd = 36 in

60\cdot 36^2 = 77760

Written in scientific notation and rounded: 7.78\cdot 10^4

 

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