小数加减法计算题.doc

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1、34.85－11.73＝75.80＋59.35＝64.39＋40.78＝67.23－19.17＝50.10－48.60＝91.91－75.10＝53.73－31.75＝64.48－14.42＝39.03－14.98=22.04＋80.13＝28.36－24.00＝61.83＋69.95＝65.36－38.06＝29.37－18.02＝42.09－32.46＝18.08＋34.00＝47.63－31.59＝17.42－10.44＝16.24－14.18＝55.89－28.75＝0.32+1.57=9.25+2.25=9.23

2、+4.52=4.22+8.46=5.63+1.25=9.36-1.59=5.63-5.21=4.65-1.15=7.65-4.19=8.88-2.69=0.7＋0.9=0.8＋0.6=8.24＋3.76=4.1－3.8=14＋0.78=14.6－0.34=1.3＋8.56=0.8－0.55=4－0.04=1－0.03=30.5＋3.05=0.8－0.45=0.78＋2.2=5－0.08=3.25＋0.75=10－0.1=54.76-51.12=59.46+18.28=21.85+37.08=84.75+21.4=12.3+

3、23.8=12.9+45.6=1.23+6.52=5.32-0.93=4.26+8.21=6.35-5.23=1.26+5.21=0.96-0.23=7.26-4.93=2.16-0.23=9.28+7.32=5.2-0.9=2.65+9.32=4.63-8.92=7.65-6.23=8.28+4.75=9.23+5.45=6.23-4.53=6.52+2.63=4.62+8.95=7.24+6.21=8.52+4.65=197+486+3＝0.66+7.85+0.15＝8.025+3.1+12.175+0.9＝4.13-

4、0.6-1.4＝4.13-（4.13+1.4）＝8.07-3.27-0.73-1.07＝6.45-（1.68+2.45）＝9.15+4.8-9.15+4.8＝5.23+10.9-5.23+10.9＝2.23-（1.23+0.86）＝2.23-（1.23-0.86）＝0.35×1.6+0.35×3.4＝0.25×8.6×4＝6.72-3.28-1.72＝0.45+6.37+4.55＝5.4+6.9×3-（25-2.5）＝4.8×46+4.8×54＝0.8+0.8×2.5＝1.25×3.6×8×2.5-12.5×2.4＝28×

5、12.5-12.5×20＝23.65-（3.07+3.65）＝4+0.4×0.25＝8×7×1.25＝1.65×99+1.65＝27.85-（7.85+3.4）＝48×1.25+50×1.25×0.2×8＝7.8×9.9+0.78＝(6.8-6.8×0.55)÷8.5＝0.12×4.8÷0.12×4.8＝（3.2×1.5+2.5）÷1.6＝5.38+7.85-5.37=6.5×（4.8-1.2×4）=0.68×1.9+0.32×1.9＝12×6÷7.2-6＝102×4.5＝7.8×6.9＋2.2×6.9＝5.6×0.25＝

6、8×（20－1.25）＝