Level D: Check numbers and subtraction
We’ve had a few of you call us regarding Lesson 49 in Level D. This will help to clarify check numbers for those of you working with them for the first time.
Just as you would check your answers in a subtraction problem by adding the answer (difference) to the the number subtracted (subtrahend), you can add the check numbers in the same order (difference plus subtrahend equals minuend).
83 (minuend) check number: (2)
-33 (subtrahend) check number: (6)
50 (difference) check number: (5)
5+6=11 which is check number 2
If you want more information on check numbers, watch this webinar. Scroll to the bottom of the page and it’s right there for you to reference.