小學(xué)數(shù)學(xué)西師新版五年級(jí)上冊(cè)小數(shù)乘法簡(jiǎn)便運(yùn)算分類練習(xí)題一、乘法交換律0.25×8.5×4

12.5×0.96×0.8

0.25×0.73×4

0.25×16.2×4

二乘法結(jié)合律4.36×12.5×8

0.95×0.25×435×0.2×0.5

0.75×50×0.4三、乘法分配律(1.25－0.125)×8（20－4）×0.25(2+0.4)×5（125+2.5）×0.8乘法分配律逆應(yīng)用

3.72×3.5＋6.28×3.5

15.6×2.1－15.6×1.1

3.83×4.56＋3.83×5.44

7.09×10.8－0.8×7.09

27.5×3.7－7.5×3.7

3.9×2.7＋3.9×7.310.6×0.35－9.6×0.35

7.6×0.8＋0.2×7.6五、把其中一個(gè)因數(shù)分成兩個(gè)數(shù)的和或差，再按乘法分配律0.8×100.10.79×990.85×1993.65×10.14.6×0.90.65×1014.8×10.1

3.6×1020.39×199

8.9×1.010.32×403

3.65×10.10.85×9.9

0.65×101六、拆分因數(shù)1.25×2.5×32

3.2×0.25×12.5

0.25×3625×4.4

8.8×1.25七、添加因數(shù)“1”56.5×99＋56.5

9.7×99＋9.7

4.2×99＋4.2

5.4×11-5.41.87×9.9＋0.187

12.7×9.9＋1.27八、更改因數(shù)的小數(shù)點(diǎn)位置6.66×3.3+66.6×67

46×57＋23×86

4.8×7.8＋78×0.52

3.14×0.68＋31.4×0.032101×0.87-0.91×87

3.65×4.7

－36.5×0.372.3×16+2.3×23+2.3

314×0.043＋3.14×7.2－31.4×0.15PAGEPAGE12九．除法運(yùn)算性質(zhì)a÷b÷c=a÷（b×c）320÷1.25÷83.52÷2.5÷0.49.6÷0.8÷0.463.4÷2.5÷0.48.54÷2.5÷0.4除法運(yùn)算性質(zhì)逆運(yùn)算a÷（b×c）= a÷b÷c3.9÷（1.3×5）15÷（0.15×0.4）75.3÷（7.53×20）48÷（0.48×0.5）十一、綜合練習(xí)題5×1.03×0.232×1.25

0.45×99

53×10.1

0.125×96

12.5×10.8

25×7.3×0.4

45×21－50×2.1

45×1.58＋5.5×15.8

4.2×6.51＋3.49×4.2

9.99×2.22＋3.33×3.3473.8－1.64－13.8－5.3666.86－8.66－1.340.25×16.2×43.72×3.5＋6.28×3.536.8－3.9－6.125.48－(9.4－0.52)4.8×7.8＋78×0.523.6×1026.4×0.25＋3.6÷432＋4.9－0.94.8－4.8×0.5(1.25－0.125)×84.8×100.156.5×9.9＋56.57.09×10.8－0.8×7.094.02＋5.4＋0.985.17－1.8－3.213.75－(3.75＋6.48)3.68＋7.56－2.687.85＋2.34－0.85＋4.6635.6－1.8－15.6－7.23.82＋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＋2.6547.8－7.45+8.80.398+0.36+3.6415.75+3.59－0.59+14.2542.5－(6.07＋1.13)4.2÷3.5320÷1.25÷818.76×9.9＋18.763.52÷2.5÷0.44.78÷0.2＋3.443.9－4.1＋6.1－5.90.49÷1.41.25×2.5×323.6－0.6×23.65×10.13.6－3.6×0.815.2÷0.25÷45.6÷3.59.6÷0.8÷0.44.2×99＋4.20.89×100.1146.5－(23＋46.5)17.8÷(1.78×4)5.83×2＋4.27(45.9－32.7)÷8÷0.1259.7×99＋9.74.36×12.5×815.6×13.1－15.6－15.6×2.10.65×10127.5×3.7－7.5×3.78.54÷2.5÷0.43.83×4.56＋3.83×5.446048＋975-3045498×396048＋75-3005648×75-30056098＋935-1045404×24－7581048＋975-345640×75÷35878×2968×975-3459948＋275-3045690×6÷3568＋975-34568＋975÷345648＋75-35685＋975-34568＋975-345548×975-304548×975-3046748＋975-50456048＋975-30450.425×0,38÷0,0120.5-1.074-8.35×5.5748＋95-4548×975-30450.425×0,38÷0,0120.5-1.074-8.35×5.552.8÷0.75×0.2545×（267＋143）（2448＋864）÷23327＋9664÷32×25727＋9660÷30×25586-45×81÷2758-45×80÷253.68÷4.6＋6.32368÷46＋632604×24－758644×14－858604×24－758408×59478×39278×39478×191.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-（3/2+4/5）8.7/8+（1/8+1/9）9.9×5/6+5/610.3/4×8/9-1/311.7×5/49+3/1412.6×（1/2+2/3）13.8×4/5+8×11/514.31×5/6–5/615.9/7-（2/7–10/21）16.5/9×18–14×2/717.4/5×25/16+2/3×3/418.14×8/7–5/6×12/1519.17/32–3/4×9/2420.3×2/9+1/321.5/7×3/25+3/722.3/14××2/3+1/623.1/5×2/3+5/624.9/22+1/11÷1/225.5/3×11/5+4/326.45×2/3+1/3×1527.7/19+12/19×5/628.1/4+3/4÷2/329.8/7×21/16+1/230.101×1/5–1/5×21簡(jiǎn)便：1.5/2-（3/2+4/5）2.7/8+（1/8+1/9）3.5/6+（1/2+2/3）4.9/7-（2/7-10/21）5.3/7+49/9+4/76.8/9+15/36+3/277.5/2-（3/2+4/5）8.7/8+（1/8+1/9）9.9/7-（2/7-10/21）10.1/5+（3/7+8/10）分?jǐn)?shù)脫式：1.1/3+3/4+1/52.3/8+8/3-1/23.5/6+1/12+3/44.30/46-1/2+7/235.8/11+2/6+7/336.19/8-1/2-3/47.7/25+3/10-2/58.18/121-1/2+9/119.6/17-1/51-1/3410.8/15+7/3-8/5408－12×24（46＋28）×6042×50－1715÷532＋105