(1)5.7×0.25+6.8×25%-8.5×14=5.7×0.25+6.8×0.25-8.5×0.25=(5.7+6.8-8.5)×0.25=4×0.25=1;(2)(712-38)×24-59=712×24-38×24-59=14-9-59=5-59=449;(3)932÷[34-(710-14)]=932÷[34-710+14]=932...
(2014•临川区模拟)脱式计算
(1)5.7×0.25+6.8×25%-8.5×14=5.7×0.25+6.8×0.25-8.5×0.25=(5.7+6.8-8.5)×0.25=4×0.25=1;(2)(712-38)×24-59=712×24-38×24-59=14-9-59=5-59=449;(3)932÷[34-(710-14)]=932÷[34-710+14]=932...