2.25x4.8+89.5x0.48-12x0.48简算

问题描述:

2.25x4.8+89.5x0.48-12x0.48简算

2.25x4.8+89.5x0.48-12x0.48
=22.5x0.48+89.5x0.48-12x0.48
=0.48×(22.5+89.5-12)
=0.48×100
=48

2.25x4.8+89.5x0.48-12x0.48=(2.25+8.95-1.2)x4.8=48