五年級(jí)小數(shù)加減乘除混合運(yùn)算計(jì)算題練習(xí)試題

-.z.小數(shù)混合運(yùn)算專項(xiàng)訓(xùn)練1、解方程?！?〕5*＝450〔2〕12〔6－*〕＝42〔3〕1.2×6+4*＝12〔4〕8.5*－*＝22.52、用簡(jiǎn)便方法計(jì)算?！?〕0.25×3.2×12.5〔2〕36×10.1〔3〕0.25×44〔4〕22.2×4+17.8×43、用脫式計(jì)算。〔1〕2.6+1.4×1.5－1.5〔2〕〔37－3.6÷4.8〕÷12.5〔3〕2.6+2.4×〔1.4－1.05〕〔4〕15.6÷16×〔0.25+1.25〕-.z.30.8÷[14-(9.85+1.07)][60-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.520×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×[15.5-(3.21+5.79)](31.8+3.2×4)÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷236.25÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)÷7671×15-974469×12+149218.1×0.92+3.930.4×0.7×0.250.78+5.436+14.8×5÷4+1÷49.9*5÷6+5÷610.3÷4*8÷9-1÷331*5÷6-5÷616.5÷9*18-14*2÷73*2÷9+1÷335.95÷〔64-45〕178-145÷5×6+427.2÷0.8-1.2×56.5×〔4.8-1.2×4〕28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×3〔31.8+3.2×4〕÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2194－64.8÷1.8×0.936.72÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)÷7671×15-974469×12+1492405×(3213-3189)19.4×6.1×2.35.67×0.2-0.6218.1×0.92+3.930.043×24+0.8750.4×0.7×0.250.78+5.436+14.07×0.86+9.12240×78÷〔154-115〕1437×27＋27×563〔75-〔12+18〕〕÷152160÷〔〔83-79〕×18〕280＋840÷24×5325÷13×(266－250)85×(95－1440÷24)58870÷(105＋20×2)1437×27＋27×56381432÷(13×52＋78)[37.85-〔7.85+6.4〕]×30〔947－599〕＋76×6436×(913－276÷23)[192－〔54＋38〕]×6781432÷(13×52＋78)〔947－599〕＋76×6460－(9.5＋28.9)÷0.182.881÷0.43－0.24×3.50.8×〔15.5-(3.21+5.79)〕31.83.2×4〕÷5194－64.8÷1.8×0.936.72÷4.25×9.93.416÷〔0.016×35〕0.8×[(10－6.76)÷1.2](6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8〔58+37〕÷〔64-9×5〕812-700÷〔9+31×11〕156×[(17.7-7.2)÷3]〔3.2×1.5+2.5〕÷1.685+14×〔14+208÷26〕120-36×4÷18+359.72×1.6-18.305÷73.2×〔1.5+2.5〕÷1.6〔58+37〕÷〔64-9×5〕(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8〔3.2×1.5+2.5〕÷1.6120-36×4÷18+3515-10.75×0.4-5.7347+45×2-4160÷52〔58+37〕÷〔64-9×5〕[〔7.1-5.6〕×0.9-1.15]÷2.5〔3.2×1.5+2.5〕÷1.65.4÷[2.6×〔3.7-2.9〕+0.62]12×6÷〔12-7.2〕-63.2×6+〔1.5+2.5〕÷1.6〔3.2×1.5+2.5〕÷1.6120-144÷18+35347+45×2-4160÷52〔58+37〕÷〔64-9×5〕95÷〔64-45〕812-700÷〔9+31×11〕120-36×4÷18+35(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.80.8×〔15.5-(3.21+5.79)〕〔31.8+3.2×4〕÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2194－64.8÷1.8×0.936.72÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)÷7671×15-974469×12+1492405×(3213-3189)0.8×[(10－6.76)÷1.2]19.4×6.1×245.67×0.2-0.6218.1×0.92+3.9324+0.875×990.4×0.7×0.250.75×102100-56.2331.50＋160÷40〔58+370〕÷〔64-45〕32.120-144÷18+3533.347+45×2-4160÷5234〔58+37〕÷〔64-9×5〕35.95÷〔64-45〕36.178-145÷5×6+42420+580-64×21÷2837.812-700÷〔9+31×11〕〔136+64〕×〔65-345÷23〕38.85+14×〔14+208÷26〕120-36×4÷18+35〔58+37〕÷〔64-9×5〕(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8〔3.2×1.5+2.5〕÷1.63.2×〔1.5+2.5〕÷1.631.50＋160÷40〔58+370〕÷〔64-45〕32.120-144÷18+3533.347+45×2-4160÷5234〔58+37〕÷〔64-9×5〕35.95÷〔64-45〕36.178-145÷5×6+42420+580-64×21÷28812-700÷〔9+31×11〕〔136+64〕×〔65-345÷23〕〔284+16〕×〔512-8208÷18〕120-36×4÷18+35〔58+37〕÷〔64-9×5〕(6.8-6.8×0.55)÷8.50.12×4.8÷0.12×4.8〔3.2×1.5+2.5〕÷1.6〔23.2×〔1.5+2.5〕÷1.646.7÷0.8-1.2×56-1.19×3-0.4347.6.5×〔4.8-1.2×4〕0.68×1.9+0.32×1.9297×9991983×21+21×3017(0.123+123)×100934×24+34810.8×0.196+0.094105+895×5732.47×23+2739.01×18.3-90176.5+2-2×18449+23×1431×9952×99+5225×32×125所有人各位小朋友：給大家“敲黑板劃重點(diǎn)啦〞1.分?jǐn)?shù)乘法四則運(yùn)算:有括號(hào)先算括號(hào)里面的，再算括號(hào)外面的；沒(méi)有括號(hào)先算乘除再算加減；2.分?jǐn)?shù)乘法分配律：〔1〕看清有算式中有沒(méi)有隱形的乘了一個(gè)1；〔2〕沒(méi)有共同的因數(shù)時(shí)，我們看看能不能湊出共同的因數(shù)來(lái)；3.分?jǐn)?shù)裂項(xiàng)：〔1〕分母的差是1是，直接將乘