Michael has 12 broken crayons and 13 unbroken crayons in his box. How many total crayons does Michael have?

The correct answer is: 25

* By Using the Double fact and near Double fact we get:
* Use doubles fact 12 + 12 = 24
* 12 + 13 is one more than 12 + 12.
* Near Doubles fact: 12 + 13 = 25.
<*> Therefore, the value of the addition 12 + 13 is 25.
<<<*>>>Hence, The total number of crayons present in the box are 25. 

* 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.