810÷54的验算怎么写?

2025-04-03 20:18:17
推荐回答(1个)
回答1:

解:810÷54等于( 15 )
∵已知需求出810÷54等于多少

X ÷ Y = Z,即X = Z × Y
∴810 ÷ 54
= 810 × 1/54
= 810/54
= (15×54)/54
= 15
经检验,810 = 15 ×54符合题意
答:810÷54等于15