四则混合运算练习1. 300+180÷5×2 600÷30-10+5= 300+36×2 = 20-10+5= 300+72 = 10+5= 372 = 15(300+180)÷5×2 600÷(30-10)+5= 480÷5×2 = 600÷20+5= 96×2 = 30+5= 192 = 35(300+180÷5)×2 600÷[30-(10+5)] =(300+36)×2 = 600÷(30-15)= 336×2 = 600÷15= 672 = 402.32×18-540÷45 (900-16×35)÷34= 576-540÷45 = (900- |