一只小狮子的体重是小猫的9倍.
15.06﹣5.27﹣4.73.
4999+499+49+3.
简便计算下面各题.44×0.25 (+)×15×17 85.57﹣(5.57﹣3.8)99999×77778+33333×66666 27×+136×+180×.
计算下面各题,能简算的要简算.4.05﹣2.8﹣0.7 1.25×32×2.5 [1﹣(﹣)]× 99.9×98+(0.8﹣)×999.
简便计算①2.5×3.7×4 ②3.14×43+72×3.14﹣150×0.314.