2*(4#1)=4#(1*2), can get 2*(2#1)=2#(1*2)=2#2, why 2*(2#1)=4#1?
from 2*(4#1) = 4#(1*2),get 4#1=2*2#1, need to assume that 2*(4#1) = (2*4)#1, is it a property of operation + - * /? or from the question, we know that there is ( )allowed in the operation?
exam on 3/8, please help. Is there similar questions on og? thanks in advance.