分析:(1)根據(jù)乘法交換律進(jìn)行簡算;
(2)根據(jù)乘法分配律進(jìn)行簡算;
(3)先算除法,再算減法;
(4)先算乘法,再算減法,最后算加法;
(5)根據(jù)乘法分配律進(jìn)行簡算;
(6)根據(jù)除法的性質(zhì)進(jìn)行簡算;
(7)根據(jù)加法交換律和結(jié)合律進(jìn)行簡算;
(8)先算除法,再按照從左向右的順序進(jìn)行計算;
(9)根據(jù)乘法交換律和結(jié)合律進(jìn)行簡算;
(10)根據(jù)乘法分配律進(jìn)簡算.
解答:解:
(1)25×36×4,
=25×4×36,
=100×36,
=3600;
(2)135×99,
=135×(100-1),
=135×100-135×1,
=13500-135,
=13365;
(3)203-135÷5,
=203-27,
=176;
(4)97-12×6+43,
=97-72+43,
=25+43,
=68;
(5)49×99+49,
=49×(99+1),
=49×100,
=4900;
(6)5620÷(562×5),
=5620÷562÷5,
=10÷5,
=2;
(7)37+125+63+175,
=(37+63)+(125+175),
=100+300,
=400;
(8)175+25÷25+15,
=175+1+15,
=176+15,
=191;
(9)125×32×25,
=125×(4×8)×25,
=(125×8)×(4×25),
=1000×100,
=100000;
(10)156×l0l-156,
=156×(l00-1),
=156×100,
=15600.
點評:此題主要考查整數(shù)的四則混合運算的運算順序和應(yīng)用運算定律進(jìn)行簡便計算.