解:568÷2等于( 284 ) ∵已知需求出568÷2等于多少 X ÷ Y = Z,即X = Z × Y ∴568 ÷ 2 = 568 × 1/2 = 568/2 = (284×2)/2 = 284 经检验,568 = 284 × 2符合题意 答:568÷2等于284