帮我算一下,一道计算题,应该有简便的算法吧37.5×21.5×0.112+35.5×12.5×0.112

Question

帮我算一下,一道计算题,应该有简便的算法吧
37.5×21.5×0.112+35.5×12.5×0.112

Answer 1

37.5×21.5×0.112+35.5×12.5×0.112
=0.112×（37.5×21.5+35.5×12.5）
=0.112×（12.5×3×21.5+35.5×12.5）
=0.112×12.5×（3×21.5+35.5）
=0.112×12.5×100
=1250×（0.1+0.01+0.002）
=125+12.5+2.5
=140