Question

計(jì)算．

7 12 ÷ 3 5 × 3 8 =	4 5 ÷ 3 10 ÷ 3 5 =	2 3 ×5÷ 3 5 =
3 4 × 4 9 ÷ 2 7 =	5 14 ÷ 3 5 × 3 4 =	4 5 × 3 7 ÷ 3 25 =

Answer 1

分析：按照從左到右的順序依次計(jì)算即可，注意先把除變?yōu)槌耍?/div>

解答：

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解： 7 12 ÷ 3 5 × 3 8 = 7 12 × 5 3 × 3 8 = 35 96 ； 4 5 ÷ 3 10 ÷ 3 5 = 4 5 × 10 3 × 5 3 = 40 9 ； 2 3 ×5÷ 3 5 = 2 3 ×5× 5 3 = 50 9 ； 3 4 × 4 9 ÷ 2 7 = 3 4 × 4 9 × 7 2 = 7 6 ； 5 14 ÷ 3 5 × 3 4 = 5 14 × 5 3 × 3 4 = 25 56 ； 4 5 × 3 7 ÷ 3 25 = 4 5 × 3 7 × 25 3 = 20 7 ． 點(diǎn)評：計(jì)算乘除混合運(yùn)算，一般先把除法改為乘法，再按照分?jǐn)?shù)的乘法法則計(jì)算．