0.1﹣0.01＝          2.24+1.76＝            0.1+0.01＝

0.75+0.125＝         11﹣7.9＝              6.57+2.6＝

7.2+1.08＝           10﹣9.8﹣0.2＝         4.5+6.4+5.5+4.6＝