Question

4.53X4.23+4.23Ⅹ14.7+5.7X60最简便的方法？

Answer 1

此题没有简便方法。
4.53*4.23+0.423*14.7+5.7*60 可以运用乘法分配律简便计算
=4.23*（4.53+1.47）+5.7*60
=4.23*6+5.7*60
=6*（4.23+57）
=6*61.23
=367.38

Answer 2

4.53*4.23+4.23*14.7+5.7*60
=4.23*（4.53*14.7）+342
=4.23*19.23+342
=（5-0.77）*（20-0.77）+342
=（100-3.85-15.4+0.5929）+342
=442-19.25+0.5929
=422.75+0.6-0.0071
=423.3429

Answer 3

4.53×4.23+4.23×1.47+5.7×60
=4.23×（4.53+1.47）+5.7×60
=4.23×6+5.7×60
=60×（0.423+5.7）
=60×6.123=367.38

Answer 4

不对吧，有一个数的小数点不对