Question

简便运算：12.5乘于9.6加上0.25乘于96

Answer 1

12.5X9.6+0.25X96=12.5x9.6+0.25x9.6x10=12.5x9.6+2.5x9.6=（12.5+2.5）x9.6=15x9.6=144

Answer 2

12.5*9.6+0.25*96 = 12.5*(8*1.2)+0.25*(4*24)=(12.5*8)*1.2+(0.25*4)*24=100*1.2+1*24=144

Answer 3

12.5×9.6+0.25×96=12.5×9.6+2.5×9.6=9.6×(12.5+2.5)=15×9.6=15-15×0.4=9