3.25x47+3.25x53=3.25x（47+53）=3.25x100=32510.1x97=（10+0.1）x97=10x97+0.1x97=970+9.7=979.7（6.8-5.4）x2.75-0.9=1.4x2.75-0.9=3.85-0.9=2.954.8/0.08-1.3x40=60-52=8
