Question #30e2e
2 Answers
This is a long way round but demonstrates the technique of conversions.
the difference is
Explanation:
To do the subtraction both values need to be in the same units. So lets convert them to ounces.
You need to know that
So
So
As the question uses pounds and ounces we need to use these units in our answer. So we need to know how many pounds there are in 41 oz
So there is 2 lb + remainder in ounces
Thus the difference is
A different approach but still using conversion.
This is the better of the two methods.
Explanation:
We have:
Note that 12 is more than 5 so we 'shift' one of the pound into the ounces column. Note that 1 pound id the same as 16 ounces. So the count of ounces in the top line changes from 5 to 5+16=21. The number of pounds in the top line reduces by 1 so it changes from 4 to 3.
Giving: