问题
解答题
下面每题,怎样算简便就怎样算
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答案
①36.8-6.8÷0.5,
=36.8-13.6,
=23.2;
②0.125×32×0.25,
=(0.125×8)×(4×0.25),
=1×1,
=1;
③1.25×8.8,
=1.25×(8+0.8),
=1.25×8+1.25×0.8,
=10+1,
=11;
④73÷4+2.7×0.25,
=73×
+2.7×0.25,1 4
=(73+2.7)×0.25,
=75.7×0.25,
=18.925;
⑤3.75÷[0.3×(1.34-0.84)],
=3.75÷[0.3×0.5],
=3.75÷0.15,
=25.