1÷0.5= 5÷40= 2.4×3= 0.8×0.5= 12﹣8.9=3.2÷0.8= 4.01÷100= 1.7×0.5= 2.5×400= 13÷0.001=3.2×50= 4.6+2.9= 0.47+1.8= 299+324= 0.6÷5=6.7﹣2.9= 23×2.7+77×2.7= 5.4+0.74+4.6=
32×125×25 500﹣25﹣25﹣25﹣25﹣25﹣25﹣25﹣25﹣25﹣256300÷4÷25 35×72+35×27+35.
995+996+997+998+999.
用简便方法计算.125×88 (25+100)×4 31×99+31.
简便计算(要求写出简算过程).73÷36+105÷36+146÷36 11+12+13+14+15+16+17+18+1925×125×8×4 154﹣283+246﹣117.
1.25×0.25×0.05×64 20.06×65+380×2.006﹣2.006×30.