Since the answer for both 23 − 17 and 26 − 20 is 6, the logic behind equal addition subtraction algorithm is:
A)adding the same number to both the subtrahend and minuend changes the answer.
B)increasing the subtrahend and decreasing the minuend does not change the answer.
C)subtracting any two numbers will give the same answer.
D)adding or subtracting the same number to both subtrahend and minuend keeps the difference between two numbers the same.

Question

Quizplus · Accepted Answer

The equal addition subtraction algorithm is based on the concept that adding or subtracting the same number to both the subtrahend and minuend keeps the difference between the two numbers the same. This is why in the examples given, since we added 6 to both 17 and 23, and 20 and 26, the difference between them remains the same at 6. Therefore, the best choice is D.

Since the Answer for Both 23 − 17 and 26