11.4-(8.4+0.25÷25%)
解:11.4-(8.4+0.25÷25%),
=11.4-(8.4+0.25÷0.25),
=11.4-8.4-1,
=3-1,
=2.
分析:把25%化為小數(shù),0.25÷0.25=1,然后運(yùn)用減法的性質(zhì)進(jìn)行簡算,得出結(jié)果.
點(diǎn)評(píng):此題考查了學(xué)生對(duì)數(shù)字的轉(zhuǎn)化方法,以及運(yùn)用所學(xué)知識(shí)簡算的能力.
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