等于47乘以(1+88+11)等于47乘以100
简便运算是直接提取公约47得47x(1+88+11)=47x100=4700加油!
解原式:47×1+47×88+47×11=47×(1+88+11)=47×100=4700
47 + 47 × 88 + 47 × 11 = 47 + 47 × (88 + 11) = 47 × 1 + 47 × (99) = 47 × 100 = 4700