怎样简便就怎样算.
①4.7+7.69+5.3+2.31 ②2000÷125÷8
③57×101﹣57 ④125×32×25
⑤86.5﹣(14.3﹣7.75) ⑥89.67+0.08﹣70.67.
怎样简便就怎样算.
①4.7+7.69+5.3+2.31 ②2000÷125÷8
③57×101﹣57 ④125×32×25
⑤86.5﹣(14.3﹣7.75) ⑥89.67+0.08﹣70.67.