You are estimating each into whole numbers. They are already whole numbers, and so just subtract.
428,734 - 175,842 = 252892
252,892 is your answer
hope this helps
 
        
             
        
        
        
Yh can we please stop with all these links they don’t help at all
        
             
        
        
        
<h2>Explanation:</h2>
Here we need to solve some expressions. Remember the following rules:

Then, from the left side:

from the right side:

 
        
        
        
Answer:
The correct answer is 18
the correct expression is 
Step-by-step explanation:
let the number be n
therefore  if he is required to multiply n by 4 and added to 6 we have 

 given that he did otherwise by adding 6 to n and multiply by 4 we have

Firstly we need to solve for n in equation 2

Dividing both sides by 4 we have

In order to solve for the correct answer let us input n=3 in equation 1 we have

 
        
             
        
        
        
Answer:
66/85
Step-by-step explanation: