If $x=4$ and $y=2$, which of the following expressions gives the smallest value?
(A) $x+y$
(B) $x y$
(C) $x-y$
(D) $x \div y$
(E) $y \div x$

Grade 8
When $x=4$ and $y=2, x+y=4+2=6, x y=4 \times 2=8, x-y=4-2=2, x \div y=4 \div 2=2$, and $y \div x=2 \div 4=\frac{1}{2}$.

Therefore, the expression which gives the smallest value when $x=4$ and $y=2$ is $y \div x$.

ANSWER: (E)