Question

Explain how place value could be used to find the difference of 4.23 and 2.75

Answer 1

Place value can be used to subtract 4.23 and 2.75 because, in order to subtract, you must line up the whole numbers together, the tenths place together, and the hundredths place together. 

Lining them up:   Whole= W   Tenths place= T   Hundredths place= H

       W   T   H
             
       4 .  2   3
    -  2 .  7   5 
   ------------------- 
       1 .  4   8