三点72 9点九再加上372简便计算（37÷9+26÷9怎么简算）

3.72×9.9+0.372

=3.72×9.9+3.72×0.1

=3.72×（9.9+0.1）

=3.72×10=37.2

3.72×9.9+0.372

=0.372×99+0.372

=0.372×（99+1）

=0.372×100=37.2

3.72×9.9+0.372

=37.2×0.99+37.2×0.01

=37.2×（0.99+0.01）

=37.2×1=37.2