直接写出结果.2.6+3.8= 0.8+1.5= 4.6+3.8= 8.3+1.7=2.4+1.8= 7.7+3.3= 6.5﹣3.8= 4.4﹣3.6=6.2﹣5.4= 4.5﹣3.9= 10﹣7.6= 22﹣14.5=
简算: 0.25×4.78×40.65×2011.2×2.5+0.8×2.5 4.8×0.256.53÷0.4÷2.51.8×20.1.
简便计算 536﹣1980.75×5.3+4.7×0.751﹣+﹣.
脱式计算,能简算的要简算. (1)0.95××0.95 (2) (3)10000÷25÷8÷4 (4)﹣1.625﹣2.375+3.
计算下面各题: ①4×120%+×6; ②1.25×32×; ③(﹣+)×24.
计算25×17×4.