问题
解答题
怎样简便就怎样算
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答案
(1)35.6+(12.6-4.4),
=35.6+8.2,
=43.8;
(2)90÷0.4÷2.5,
=90÷(0.4×2.5),
=90÷1,
=90;
(3)0.86×15.4-14.4×0.86,
=0.86×(15.4-14.4),
=0.86×1,
=0.86;
(4)5.4÷0.6+(2.3-0.46),
=5.4÷0.6+1.84,
=9+1.84,
=10.84;
(5)7.52×10.1,
=7.52×(10+0.1),
=7.52×10+7.52×0.1,
=75.2+0.752,
=75.952;
(6)1.25×0.7×0.8,
=1.25×0.8×0.7,
=1×0.7,
=0.7.