①0.93×1.01②6.24-3.34-2.66③0.485×102-48.5④4.4+4.4×12+13×5.6(用简便方法)_数学解答

①0.93×1.01②6.24-3.34-2.66③0.485×102-48.5④4.4+4.4×12+13×5.6(用简便方法)
是求最后等于,要用简便计算,用递等式.加油,

人气：328 ℃　时间：2020-03-28 05:35:26

解答

①0.93×1.01=0.93*(1+0.01)=0.93*1+0.93*0.01=0.93+0.0093=0.9393②6.24-3.34-2.66=6.24-(3.34+2.66)=6.24-6=0.24③0.485×102-48.5=48.5*1.02-48.5=48.5*(1.02-1)=48.5*0.02=0.97④4.4+4.4×12+13×5.6=4.4*(1+12)...