解:(1)2.18+3.7+0.82+6.3
=(2.18+0.82)+(3.7+6.3),
=3+10,
=13;
(2)(620+380)÷50×4
=1000÷50×4,
=20×4,
=80;
(3)528×58+472×58
=(528+472)×58,
=1000×58,
=58000;
(4)125×96×8
=125×8×96,
=1000×96,
=96000;
(5)9.5+4.85-8.16
=14.35-8.16,
=6.19;
(6)51.27-8.66-1.34
=51.27-(8.66+1.34),
=51.27-10,
=41.27.
分析:(1)可根據(jù)加法交換律與結(jié)合律計(jì)算;
(2)先算括號(hào)中的加法,再算除法與乘法;
(3)可根據(jù)乘法分配律計(jì)算;
(4)可根據(jù)乘法交換律計(jì)算;
(5)按從左到右的順序計(jì)算即可;
(6)可根據(jù)一個(gè)數(shù)減兩個(gè)數(shù),等于減去這兩個(gè)數(shù)的和的減法性質(zhì)計(jì)算.
點(diǎn)評(píng):完成本題要注意分析式中數(shù)據(jù)的特點(diǎn),運(yùn)用合適的方法進(jìn)行計(jì)算.