小学五年级数学（上册）两两四0小数点0.08640.0.00.36×3.51801081.2601.260.024×0.15120240.003600.003634.57.512.50.961.440.2882.28大...
小学五年级数学（上册）4201.2264.1276.310001002.12810100021281000两位四位小数点小数点因数右边小数点6.8×1.3204688.848.847.1×0.3428...
小学五年级数学（上册）6.233282.518727.21001.401009.638.4整数积....12.6×8100.84.05×312.15100.812.15360036363.615.6×4=62.4（元）答：妈妈花了62.4元钱。
