Question

What is the answer to 7.19×.45 plz show the work

Answer 1

3.2355 

Fist we line up all the numbers, we forget about the decimal for a moment and we will come back to it in the end.

   7.19
x0.45
----------
 28760      

We put 0 first because we are working on the ten place, and we do a normal multiplication problem: 4*9= 36 (bring the 3 over). 4*1= 4+3 = 7. 4*7= 28  Then we work on the second part.  

   7.19
x0.45
----------
 28760
   3555

As same as the first step, it is normal multiplication...

    7.19
x0.45
----------
 28760
   3555
-----------
  32315

We all both numbers together...  For the final answer, we count the decimal place of the numbers given in the problem, 7.19 and 0.45.  They both have 2 decimal places, so 2+2=4.  So 4 decimal places.  We give the final answer 4 decimal places. 

3.2315

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