Question

7.45g+41mg=______mg

Answer 1

use the same method I used in the last question

1000mg = 1g

so make a ratio to cancel out grams

\[\frac{1000mg}{1g}*7.45g\]

Answer 2

notice how the grams cancel out in this and you are left with mg

Answer 3

follow?

Answer 4

you can do this with any units btw well except temperature and I'm sure time and some other crazy units

Answer 5

but weights, volumes and masses it should be safe

Answer 6

what about 19mm+6.3cm+.47m=_______m

Answer 7

how many cm are in 1 meter

Answer 8

how many mm in 1 meter

Answer 9

1m = 100cm

1m = 1000mm

now just set up a ratio similar to I do where the units cancel out

Answer 10

Its like this :)
\[\frac{100mg*7.45g}{1g} = \frac{100mg*7.45}{1} = 100mg*7.45\]

Answer 11

kind of like treating the units as a number

Answer 12

nvm you can do this for time as well, my excuse for stating that is I'm ill