Question

計(jì)算． 18÷ 9 10	10 21 ÷ 15 14	10 19 ÷ 25 38	19 46 ÷ 57 92
13 43 ÷ 39 43	7 12 ÷14	14 15 ÷ 7 30	25 26 ÷ 10 13 ．

Answer 1

分析：依據(jù)分?jǐn)?shù)除法的運(yùn)算法則，即除以一個(gè)數(shù)，就等于乘這個(gè)數(shù)的倒數(shù)，即可逐題解答．

解答：解：

18÷ 9 10 =20	10 21 ÷ 15 14 = 4 9	10 19 ÷ 25 38 = 4 5	19 46 ÷ 57 92 = 2 3
13 43 ÷ 39 43 = 1 3	7 12 ÷14= 1 24	14 15 ÷ 7 30 =4	25 26 ÷ 10 13 = 5 4 ．

點(diǎn)評(píng)：此題主要考查分?jǐn)?shù)除法的運(yùn)算法則的靈活應(yīng)用．