如果a×20%=b×25%,那么b>a. .(判断对错)
151+150+149= ×3.
在○里填上“>、<、=”5.46﹣2.1+1.9○5.46﹣(2.1+1.9)0.27+0.73○0.04+0.067+0.03○3+0.07.
1.4477÷0.0031﹣19.816×10.25+36.114= .
3.75×31+62.5×3.1= .
计算:99999×22222+33333×33334= .