/計(jì)算練習(xí)一一、口算題1-0.01=0.2×0.3=0.32÷0.4=0.5-0.05=3.5×0.2=2.5+6.5=1÷0.01=10÷0.5=2.4×5=0.72÷0.9=二、簡(jiǎn)便計(jì)算13.6+(4.28+6.4)+5.72147.3－28.4－71.6139.46—(58.74+19.46)1.25×7×0.88.6÷4.5+18.4÷4.5三、堅(jiān)式計(jì)算27×41=43×46=25×23=66×57=47×33=計(jì)算練習(xí)二一、口算題1-0.01=0.2÷0.01=4.8+2=0.25×40=9.6÷32=1－0.37=4.3+0.57=1.25×16=2÷5=0.81÷0.9=二、簡(jiǎn)便計(jì)算12.4÷0.25（24+9.6÷2.4）×0.53.83×4.56＋3.83×5.445.6÷3.5（7.2－0.4）×25三、堅(jiān)式計(jì)算87×10=84×13=15×46=95×37=45×86=計(jì)算練習(xí)三一、口算題4.3+0.57=1.25×16=2÷5=0.81÷0.9=5.5＋1.45=0.7×1.3=9.4÷0.01=10.1×2.3=0.72÷0.9=2÷0.125=二、簡(jiǎn)便計(jì)算3.65×10.12.5×0.32×1.256.136×86+86×3.86453.4÷0.25÷0.4101×5.3三、堅(jiān)式計(jì)算96×54=84×81=18.2–9.02=98×27=43×90=計(jì)算練習(xí)四一、口算題27÷54=2.5×12=4.52＋6.48=0.2+0.7=5.9-5=1.4×0.3=0.75÷0.5=0.8÷1.6=2+0.03=1-0.25=二、簡(jiǎn)便計(jì)算7.3×4.6+5.4×7.37.4×0.998.5－0.24－1.763.75×0.5＋6.25÷26.3×2.1－0.63三、堅(jiān)式計(jì)算15+6.92=32.3×5.2=328÷41＝12.6÷3=645÷82＝計(jì)算練習(xí)五一、口算題1.8+0.02=8.01+0.19=3.5+6.5=6÷12=8.4÷0.4=5×0.7=1÷0.25=12.5×8=0.16÷0.4=0.04×20=二、簡(jiǎn)便計(jì)算5.6÷350.35×2011.3+0.69+0.73.65÷2.5÷412.3×99+12.3三、堅(jiān)式計(jì)算282÷32＝576×72＝412÷53＝190×40=45×840=計(jì)算練習(xí)六口算題16×2.5=55.8÷1000=6.03×10=3.4-1.4=2.19＋9.1=10.1－0.89=0.68＋0.42=8.1－5.1=0.728－0.24=0.8＋0.18=二、簡(jiǎn)便計(jì)算6.3÷0.5÷2270÷4.520－3.7－7.30.38+9.6÷3.2×5.47.6-(3.05+2.6)三、堅(jiān)式計(jì)算408×60=112×32=430×180=304×320=850×60=計(jì)算練習(xí)七一、口算題0.89-0.25=0.5×400=19.9+11.1=187÷1000=1+3.89=0.081×10=75÷10=100－35.22＝2.5×0.4＝2.4×5＝二、簡(jiǎn)便計(jì)算6.3+4.82+3.7－0.82307×10.10.45×18132－43.7－56.30.32×12.5×2.5三、堅(jiān)式計(jì)算566×50＝269×86＝684×895＝56×796=999×97＝計(jì)算練習(xí)八口算題0.22×4＝0.9－0.52＝3.99×1＝0×3.52＝2.5÷5＝0.8×7=1.5×7=1.02×8＝10.3×2＝8.4÷7＝二、簡(jiǎn)便計(jì)算7.6×21－7.672÷1.25÷87.3＋2.7－7.3＋2.75.6×1.25（7.7＋15.4）÷7三、堅(jiān)式計(jì)算111×12＝567×78＝175×90＝605÷59=608÷42=計(jì)算練習(xí)九一、口算題5×0.6＝0.9×0.3＝3.5×0.2＝2.01×0＝10×0.05＝0.13×7＝0.21×100＝0.7×4＝0.05×4＝4×0.3＝二、簡(jiǎn)便計(jì)算4.7×8.3＋5.3×8.37.12×4－1.12×4450÷2.5÷29.9×341.5×1.2＋8.8×1.5三、堅(jiān)式計(jì)算8000÷56=1900÷23=9200÷44=9600÷88=8800÷48=計(jì)算練習(xí)十一、口算題0.4×50＝30×0.1＝2.6×3＝4.1×2＝2.3×4＝3.25×2＝0.35×0.2＝7.5×0.1＝1－0.08＝3.5×0.01＝二、簡(jiǎn)便計(jì)算12.5×8.8（125－1.25）×0.83.5×0.4＋