解:(1)47+256+53
=(47+53)+256,
=100+256,
=356;
(2)368-152-48
=368-(152+48),
=368-200,
=168;
(3)25×17×4
=25×4×17,
=100×17,
=1700;
(4)2700÷25÷4
=2700÷(25×4),
=2700÷100,
=27;
(5)125×88
=125×8×11,
=1000×11,
=11000;
(6)99×41+41
=(99+1)×41,
=100×41,
=4100;
(7)13×75+13×25
=(75+25)×13,
=100×13,
=1300;
(8)125×72
=125×8×9,
=1000×9,
=9000;
(9)25×(4+8),
=25×4+25×8,
=100+200,
=300.
分析:算式(1)可根據(jù)加法交換律進行計算;
算式(2)可根據(jù)一個數(shù)減兩個數(shù),等于用這個數(shù)減去這兩個數(shù)的和的減法性質進行計算;
算式(3)可根據(jù)乘法交換律進行計算;
算式(4)可根據(jù)一個數(shù)除以兩個數(shù),等于用這個數(shù)除以這兩個數(shù)的積的除法性質進行計算;
算式(5)可將式的88拆分為8×11進行計算;
算式(6)(7)(9)可根據(jù)乘法分配律進行計算;
算式(8)可將72拆分為8×9進行計算.
點評:完成本題要注意分析式中數(shù)據(jù)的特點及內在聯(lián)系,然后選擇合適的方法進行計算.