Question

5.73×46+57.3×5.4用简便方法来计算？

Answer 1

把5.73扩大十倍变成57.3 46缩小十倍变成4.6 原式就成了 57.3×4.6+57.3×5.4 然后提取公因式 57.3
57.3（4.6+5.4）＝573

Answer 2

5.73*46+57.3*5.4
=57.3*0.1*46+57.3*5.4
=57.3*（0.1*46）+57.3*5.4
=57.3*4.6+57.3*5.4
=57.3*（4.6+5.4）
=57.3*10
=573