分析:(1)根据减法的性质简算;
(2)先算小括号里面的减法,再算括号外的除法,最后算括号外的加法;
(3)先算除法,再算乘法,最后算减法;
(4)先同时运算除法和乘法,最后算加法;
(5)先把小括号里面的加法运用加法结合律简算,再算括号外的减法;
(6)根据减法的性质和加法结合律简算.
解答:解:(1)815-185-315,
=815-315-185,
=500-185,
=315;
(2)1872+472÷(205-197),
=1872+472÷8,
=1872+59,
=1931;
(3)3360-360÷15×26,
=3360-24×26,
=3360-624,
=2736;
(4)688÷8+37×29,
=86+1073,
=1159;
(5)8000-(1532+457+543),
=8000-[1532+(457+543)],
=8000-(1532+1000),
=8000-2532,
=5468;
(6)(653+1977)-(453+277),
=653+1977-453-277,
=(653-453)+(1977-277),
=200+1700,
=1900.
点评:此题是考查四则混合运算,要仔细观察算式的特点,灵活运用一些定律进行简便计算.