五年级上册递等式计算题五年级上册递等式计算题五年级上册递等式计算题五年级上册递等式计算题(2.65+2.77)÷()÷9144÷÷0.5x413.75÷53+23.4÷7.8÷0.62.881÷28-(3.4+1.25x2.4)(31.8+3.2x4)÷531.5x4÷(5.36+3.64)0.64x25x7.8+2.22÷2.5+2.5÷2194-64.8÷36.72÷5180-705x624÷3.416÷(0.016x35)5.12+2.54+4.88+7.469.9x2.5+201x3.452.8x7.6+1.4x2.8+2.81...