四年級小數(shù)簡便運(yùn)算

..小數(shù)簡便運(yùn)算練習(xí)一：6.28+5.06+4.0432.8+3.02+17.26.02+4.3+3.985.85+1.89+2.153.8+14.6+6.224.8+14.6+15.475.8-3.25-6.751.83+3.79+0.173.2-4.3+1.8小數(shù)簡便運(yùn)算練習(xí)二：32.8+3.02+17.27.45+8.29+2.5513.78-〔0.78+0.5〕8.38+9.43+6.625.86-1.77+2.1417.34-〔9.8+6.34〕0.93+5.45+4.5532-6.34-3.662.5+3.25+0.753.8+6.5+6.2100-5.6-4.46.76+2.77+3.23小數(shù)簡便運(yùn)算練習(xí)三：52.89-〔13.54+6.89〕53.14+〔16.57+6.86〕22.6-〔3.9+12.6〕7.45+8.29+2.5513.78-〔0.78+0.69〕2.43-〔0.28+1.43〕6.54-2.36-3.644.6+14.3+5.72.6+6.92+3.451.69-〔11.69+10.15〕18.76-〔5.76+2.9〕3.6+6.62+6.443.23-〔13.23+10.75〕20.16-〔10.16+3.8〕小數(shù)簡便運(yùn)算練習(xí)四：5.85+1.89+2.152.48+1.46+1.547.68－2.74－1.268.75+2.87+1.2524.8+14.6+15.45.85－1.75－0.253.8+1.37+6.2+12.63〔15.28+28.99〕+20.7242.5－22.17－7.836.9＋4.8＋3.10.456＋6.22＋3.7815.89＋(6.75－5.89)4.02＋5.4＋0.985.17－1.8－3.213.75－(3.75＋6.48)小數(shù)簡便運(yùn)算練習(xí)五：3.68＋7.56－2.687.85＋2.34－0.85＋4.6635.6－2.8－15.6－7.23.82＋2.9＋0.18＋9.19.6＋4.8－3.67.14－0.53－2.475.27＋2.86－0.66＋1.6313.35－4.68＋2.6573.8－1.64－13.8－5.3647.8+7.45－8.80.398+0.36+3.6415.75+3.59－0.59+14.2566.86－8.66－1.3436.8－3.9－6.132＋4.9－0.9小數(shù)簡便運(yùn)算練習(xí)六：25.48－(9.4－0.52)3.9－4.1＋6.1－3.2＋5.89－0.89146.5－(23＋46.5)9.43-〔〕4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.242.35+1.713+0.287+7.652.57+0.245+7.436.02+3.6+1.980.134+2.66+0.8661.27+3.9+0.73+16.17.5＋4.9－6.5小數(shù)簡便運(yùn)算練習(xí)七：3.07－0.38－1.621.29＋3.7＋2.71＋6.38－2.45－1.553.25＋1.79－0.59＋1.7523.4－0.8－13.4－7.23.2＋0.36＋4.8＋1.641.23＋3.4－0.23＋6.612.7－〔3.7＋0.84〕36.54－1.76－4.5414－7.32－2.682.64＋8.67＋7.36＋12.45－1.35－0.6521.32－〔6.32+8.3〕27.3+73.2+72.7小數(shù)簡便運(yùn)算練習(xí)八：32.8+3.02+17.27.45+8.29+2.5513.78-〔0.78+0.5〕8.38+9.43+6.625.86-1.77+2.1417.34-〔9.8