用递等式计算(能简算的要简算)÷[] (25﹣25×0.6)÷0.9×5.7+5.9×7.5﹣1.6× 8.15﹣2.93﹣1.07﹣3.15.
脱式计算 3978÷39+240 1.42×9.2+0.8×1.42 ×(9﹣÷5) ÷[×(﹣)] .
7.08÷(1.25×0.8)= ﹣+= ×÷×= 5.38﹣(2.1+2.38)=(﹣)×63= 0.5×(2.6﹣2.4)= (0.18+0.9)÷0.9= 3﹣﹣=
脱式计算.(能简算的要简算)(1)0.125×+1.875÷4 (2)27×99(3)30.1﹣16.8÷3.5×6.2 (4)×2.5××0.4(5)÷[(﹣)÷] (6)(﹣×)÷.
计算下面各题,后两题请用简便方法计算.2+0.45÷0.9﹣; ÷[×(﹣)];93+1.06++2.94; 3.78×6.2+3.78×3.8.
递等式计算(能简算的要简算)+++ (﹣)×24 ﹣8÷8××[﹣(﹣)] ÷×(﹣) 6÷[×(﹣)].