3.75×27.5 37.5×7.25怎么脱式计算？

Question

如题所述

Answer 1

3.75×27.5 +37.5×7.25
【提取3.75】
=3.75x(27.5-10x7.25)
=3.75x100
=375

Answer 2

3.75×27.5+37.5×7.25=375
＝3.75×27.5+3.75×72.5
＝3.75×（27.5+72.5）
＝3.75×100
＝375

Answer 3

3.57×27.5+37.5×7.25
＝3.57×27.5+3.57×72.5
＝3.75×（27.5+72.5）
＝3.57×100
＝357

Answer 4

3.75*27.5+3.75*72.5
=3.75*（27.5+72.5）
=3.75*100
=375