[(9+0.25)×12]÷30
[(9+0.25)×12]÷30
【(9+0.25)×12】÷30简便算法
9÷0.25脱式算急
6.9÷2.3= 12 +13 = 9+29 = 45 +12 =
一、递等式计算:1.2÷0.5+8.8÷0.5 55.25÷1.3-10.596÷0.25÷12 16.2÷(48.6+
1+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42 简便计算过程,/是分数线,÷是除号
一、口算10-2.65= 0÷3.8= 9×0.08= 24÷0.4= 67.5+0.25= 6+14.4= 0.77+
1.8÷0.25+2.2×0.25简便算法
简算要过程4/7÷9+3/7×1/9 [1-(1/8+0.25)]÷5/12=?
要过程4/7÷9+3/7×1/9 [1-(1/8+0.25)]÷5/12=?
帮忙解几道口算题9.2÷2.3= 24÷4+56÷4=0.36+0.64= 4÷0.25=1.8×5= 30×(200+
计算.(-5)×(-87/9)-(-7)×(+79/9)+12÷(-9/79)