Question

Change into smaller units and add

$28$g $14$mg and $10$g $134$mg

Answer 1

We know that

$1$g $=1000$mg

$28$g$=28000$mg

$28$g $14$mg $=28000+14$

$28$g $14$mg $=28014$$\to$$\overline{)1}$

$10$g $=10000$mg

$10$g $134$mg $=10000+134$

$10$g $134$mg $=10134$$\to$$\overline{)2}$

Adding equation $\overline{)1}$ and $\overline{)2}$

$28014+10134=38148$

Hence, the correct answer is $38148$mg