All that's easy.The anwer to an additional prolem is a SUM
The sum
this is an additional problem
The answer in a subtraction problem is difference.
A product is an answer to a multiplication problem.
you call it a product
Problem analysis.
the answer
It all depends on what your residential phone line has for a plan. If it is unlimited local and long distance, you should have no problem making this call and should not incur an additional charge if the call is within the United States. The Verizon phone will lose it's monthly minutes unless it is on an unlimited call plan.
There is an additional guest room under the staircase.The additional reinforcements were a relief to the troops.The manager asked her to call in some additional supplies because the stock was running low.
The answer to a substraction problem is called a difference
Your face was biggest problem .
A quotient