15 + 14 can be solved using _____________

The correct answer is: Near Double Fact

>>>Since, it is in the form of (x) + (x+1). we can use near double fact to obtain the addition of the numbers.
>>>Near Double fact:
                                 Sum of the two numbers that follow each other is called near Double Fact.
>>>Therefore, we can say that the addition 15 + 14 can be solved by using near Double Fact.

* Addition means summing up two or more numbers or values to get another number.

* The property of addition is to increase the value by adding another value to it.