Question

30.5-(12.6-4.5)怎么简单怎么算？

Answer 1

解:根据题目特点，要念掘用简便方法计算，
可将能凑整数的仔正核小数30.5和4.5相清败加即可

30.5一(12.6一4.5)
=30.5一12.6十4.5

=30.5十4.5一12.6
=35一12.6
=22.4

Answer 2

简轮槐便计算罩乱方法是:
30.5-(12.6-4.5)
＝30.5+4.5-12.6
＝腊闷友35-12.6
＝22.4

Answer 3

解:简便运改大正算仿雹如核悔下:
30.5-(12.6-4.5)
=30.5-12.6+4.5
=(30.5+4.5)-(12+0.6)
=35-12-0.6
=23-0.6
=22.4

Answer 4

30.5-（12.6-4.5）=30.5+4.5-12.6=35-12.6=22.4

Answer 5

30.5－扰轮唯樱(12.6－缓山信4.5)
=30.5－12.6+4.5
=30.5+4.5－12.6
=35－12.6
=22.4