分析:(1)(2)運(yùn)用乘法分配律進(jìn)行計(jì)算使計(jì)算更加簡便.
(3)按照小數(shù)四則混合運(yùn)算順序進(jìn)行計(jì)算,先算小括號(hào)內(nèi)的,再算中括號(hào)內(nèi)的,最后算括號(hào)外的,同級(jí)運(yùn)算從左向右依次計(jì)算,含兩級(jí)運(yùn)算先做乘除后做加減.
(4)把0.125×32×2.5轉(zhuǎn)換為:0.125×8×4×2.5,再運(yùn)用乘法結(jié)合律進(jìn)行簡算.
解答:解:(1)6.33×101-6.33,
=6.33×(101-1),
=6.33×100,
=633;
(2)1.56×1.7+0.44×1.7,
=1.7×(1.56+0.44),
=1.7×2,
=3.4;
(3)1.8×[(3.41-2.9)÷0.03],
=1.8×[0.51÷0.03],
=1.8×17,
=30.6;
(4)0.125×32×2.5,
=(0.125×8)×(4×2.5),
=1×10,
=10.
點(diǎn)評(píng):此題考查的目的是能夠運(yùn)用乘法的運(yùn)算定律對(duì)小數(shù)四則混合運(yùn)算進(jìn)行簡便計(jì)算.