问题
解答题
选择合适的方法计算
|
答案
①7.8÷0.26÷0.3,
=7.8÷(0.26×0.3),
=7.8÷0.078,
=100;
②5.4+4.6÷0.2,
=5.4+23,
=28.4;
③1.43×2.5+0.57×2.5,
=(1.43+0.57)×2.5,
=2×2.5,
=5;
④10.8÷0.27×4,
=40×4,
=160.
选择合适的方法计算
|
①7.8÷0.26÷0.3,
=7.8÷(0.26×0.3),
=7.8÷0.078,
=100;
②5.4+4.6÷0.2,
=5.4+23,
=28.4;
③1.43×2.5+0.57×2.5,
=(1.43+0.57)×2.5,
=2×2.5,
=5;
④10.8÷0.27×4,
=40×4,
=160.