3.5×4=8.2+2.08=36÷0.01=99+1÷10=
6-2.4×2=4÷0.5=2÷25=0.25×0.4=
0.46÷4.6=0.27÷0.3×0.3=6.9-6.9×0=7.5×2.5×4=
4.3×101-4.3=1÷0.1-9×0.1=37.2×99+37.2=7.1-0.6-0.4=

解:

3.5×4=14,8.2+2.08=10.28,36÷0.01=3600,99+1÷10=99.1,
6-2.4×2=1.2,4÷0.5=8,2÷25=0.08,0.25×0.4=0.1,
0.46÷4.6=0.1,0.27÷0.3×0.3=0.27,6.9-6.9×0=6.9,7.5×2.5×4=75,
4.3×101-4.3=430,1÷0.1-9×0.1=9.1,37.2×99+37.2=372,7.1-0.6-0.4=6.1.

分析:本題根據(jù)小數(shù)加法、減法、乘法、除法的運(yùn)算法則及四則混合運(yùn)算的運(yùn)算順序計(jì)算即可;
7.5×2.5×4可根據(jù)乘法結(jié)合律計(jì)算;
4.3×101-4.3、37.2×99+37.2可根據(jù)乘法分配律計(jì)算;
7.1-0.6-0.4可根據(jù)一個(gè)數(shù)減兩個(gè)數(shù),等于用這個(gè)數(shù)減去這兩個(gè)數(shù)的和的減法性質(zhì)進(jìn)行計(jì)算.
點(diǎn)評(píng):完成本題要認(rèn)真分析式中數(shù)據(jù)的特點(diǎn)及內(nèi)在聯(lián)系,然后快速準(zhǔn)確得出答案.
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