Greta bought 3 lb 4 oz of peanuts and shared 1 lb 12 oz with the class. What is the weight of the remaining peanuts?

##24## oz.

conversion factor:

##1## lb = ##16## oz.

so ##3## lb = ##3*16## = ##48## oz.

and ##3## lb. + ##4## oz. = ##48 + 4 = 52## oz.

Likewise:

##1## lb + ##12## oz = ##16 + 12## = ##28## oz.

##3## lb and ##4## oz - ##1## lb and ##12## oz = ##52## oz - ##28## oz.

= ##24## oz.