= 7, b = 5

( + " + " + b + " = " + ( + b))
( + " - " + b + " = " + ( - b))
( + " * " + b + " = " + ( * b))
( + "  " + b + " = " + (  b)) Ru  z
( + " % " + b + " = " + ( % b)) S   f