直接写出得数0.56÷0.7= 0.96÷0.24= 3.1×0.3= 0.16×2= 0.75÷0.15=0.24÷0.6= 0.04×0.2= 0.8×0.05= 0.63÷7= 23÷0.46=2.1×4= 3.2×0.3= 1.21÷1.1= 0.84÷0.28= 2.5×4=0.45×0.2= 2.1÷3= 6.4÷8= 1.25×0.8= 4×0.25=
选用合适的方法计算(写出计算过程). 12.8×99+12.8 12÷[()×9]×6+2×(﹣)
用你喜欢的方法计算,要细心哦! 68.26﹣23.4﹣6.6+11.74(+﹣)×128.7×2.9+71×0.87 58×(+)÷+(0.75﹣×(+)
计算下面各题. (1)41×(2)12×(+﹣)(3)375+450÷18×25 (4)(+)÷(5)8﹣6÷2.4(6)1.2×1.2+8.8×1.2.
能简算的要简算. 57.5﹣4.25﹣15.75÷[×(+)]×16.31﹣2.31÷ (54+)÷99.25×9.9+92.5%36÷[(﹣)×3].
3.125×(1.6+2)÷(2﹣0.625)××+××+××++ (1﹣0.8)÷0.63﹣(÷0.45﹣1) (3+1×7)÷1﹣1 67×+2×3.75﹣4×25% 789×788788﹣788×789789.