依据下面竖式回答问题. .
直接写出得数2.2+3.58= 0.23×400= 400÷25÷8= = 1.9×2×0.5== = = 0.9÷99×0.9= =
(1)17690÷58×89﹣6759 (2)7.35+2.65×(3.9﹣7.632÷2.4)(3)36﹣8.325+21﹣1 (4)27×60+9×96.
用递等式计算,能简算的要简算14×75﹣624÷39 (7.6﹣3.6÷2)×1.5 ÷+×++6.875+ ÷(﹣)× 〔﹣(﹣)〕÷.
计算.(能简算得要简算)3.4÷[(1.25+0.45)×23] .
脱式计算:0.75÷0.25+× (8.6×0.5﹣)÷12 ÷[﹣(+)] [800×(1+25%)﹣360×1.5]÷25% 15﹣[+(2.5﹣)]÷0.125.