Using the distributive property we can rewrite the expression as:
20 + 25 + 55 = 5*(4 + 5 + 11) = 5*20
How to use the distributive property?
The distributive property is defined as:
A*(B + C) = A*B + A*C
Here we have the expression:
20 + 25 + 55
We can see that all of these are multiples of 5, so we can write:
20 = 4*5
25 = 5*5
55 = 5*11
Then we can rewrite the expression as:
4*5 + 5*5 + 5*11
Now we can use the distributive property to rewrite this as:
4*5 + 5*5 + 5*11 = 5*(4 + 5 + 11) = 5*20