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3.252÷5.5等于竖式计算

3.252/5.5 = 0.59127272727273

3.2÷25=0.128 竖式见图:

除得尽,得到2位小数:3.25÷5 = 0.65

(1)25×42=1050; (2)408÷6=68; (3)2.3+7.27=9.57.

3.25/(2.5*4)

5-3/5÷6/25-1/2 =5-3/5x25/6-1/2 =5-5/2-1/2 =5-(5/2+

解: 125×2/3+25×5/8-25÷8 =250/3+125/8-25/8 =250/3+

2/5÷x等于4/25 解:(2/5)÷x=4/25 方程两边同时乘以x得: 2/5=(4/2

25X(3/5) =5X3 =15

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