Question

16．在下面橫線上填上適當(dāng)?shù)臄?shù)．
808$\stackrel{÷0.4}{→}$2020$\stackrel{÷20}{→}$101$\stackrel{+23}{→}$124
225$\stackrel{×3}{→}$675$\stackrel{-3.09}{→}$671.91$\stackrel{+60}{→}$731.91
1204$\stackrel{÷5}{→}$240.8$\stackrel{÷10}{→}$24.08$\stackrel{-2.1}{→}$21.98．

Answer 1

分析 根據(jù)小數(shù)加減乘除法的計(jì)算方法進(jìn)行計(jì)算．

解答 解：808$\stackrel{÷0.4}{→}$2020$\stackrel{÷20}{→}$101$\stackrel{+23}{→}$124；
225$\stackrel{×3}{→}$675$\stackrel{-3.09}{→}$671.91$\stackrel{+60}{→}$731.91；
1204$\stackrel{÷5}{→}$240.8$\stackrel{÷10}{→}$24.08$\stackrel{-2.1}{→}$21.98．
故答案為：2020，101，124；  675，671.91，731.91；  240.8，24.08，21.98；

點(diǎn)評(píng) 考查了小數(shù)加減乘除法的計(jì)算，根據(jù)各自的計(jì)算方法進(jìn)行計(jì)算．