# Math Help - metric conversion confusion

1. ## metric conversion confusion

0.75 kg to mg

0.75 kg x 1000000mg
1kg

i multiplied 1000000x0.75
by hand and came up with the wrong answer don't know what i did wrong
0750000.00

by I know the answer should be 7.5 x 10^5

2. ## Re: metric conversion confusion

Your result is the same as the given result in scientific notation.

$0.75\text{ kg}\cdot\frac{10^6\text{ mg}}{1\text{ kg}}=0.75\times10^6\text{ mg}=7.5\times10^5\text{ mg}$

3. ## Re: metric conversion confusion

1500 millimeters to km

1500 mm x 1 km
10^6

1.5 x 10^5 is the answer
I am not sure if this is right

4. ## Re: metric conversion confusion

$1.5\times10^3\text{ mm}\cdot\frac{1\text{ km}}{10^6\text{ mm}}=1.5\times10^{-3}\text{ km}$

5. ## Re: metric conversion confusion

where did you get 10 ^3 from

6. ## Re: metric conversion confusion

$1500=1.5\times10^3$

7. ## Re: metric conversion confusion

ok now did you subtract the exponents

3-6=-3

8. ## Re: metric conversion confusion

why did you make 10^6 to 10^5