用梯等式计算（怎样算简便就怎样算）43.01减17.82加2.18

题目

用梯等式计算（怎样算简便就怎样算）43.01减17.82加2.18

答案

43.01-17.82+2.18
=43.01-(17.82+2.18)
=43.01-20
=23.01