六年級(jí)奧數(shù)題簡(jiǎn)便計(jì)算

字號(hào):

計(jì)算4.75-9.63+(8.25-1.37)
    原式=4.75+8.25-9.63-1.37
     =13-(9.63+1.37)
     =13-11
     =2