Question

Jerome tries to find the value of the expression 3 - 6 + 5 by first applying the commutative property.He rewrites the expression as 3 - 5 + 6.Explain what is wrong with Jerome's approach.

Answer 1

By moving the signs he actually changed the number itself. He changed -6 from a negative to a positive and 5 from a positive to a negative. Both equations give different answers. 

Hopefully this helps :)