三年级口算乘法100题及答案(300道题)

三年级口算乘法100题及答案(300道题)一、题目部分1.3×4=?2.5×7=?3.9×6=?4.8×8=?5.2×9=?6.7×3=?7.4×5=?8.6×6=?9.1×8=?10.10×10=?11.2×2=?12.3×3=?13.4×4=?14.5×5=?15.6×6=?16.7×7=?17.8×8=?18.9×9=?19.10×10=?20.11×11=?21.12×12=?22.13×13=?23.14×14=?24.15×15=?25.16×16=?26.17×17=?27.18×18=?28.19×19=?29.20×20=?30.21×21=?31.22×22=?32.23×23=?33.24×24=?34.25×25=?35.26×26=?36.27×27=?37.28×28=?38.29×29=?39.30×30=?40.31×31=?41.32×32=?42.33×33=?43.34×34=?44.35×35=?45.36×36=?46.37×37=?47.38×38=?48.39×39=?49.40×40=?50.41×41=?51.42×42=?52.43×43=?53.44×44=?54.45×45=?55.46×46=?56.47×47=?57.48×48=?58.49×49=?59.50×50=?60.51×51=?61.52×52=?62.53×53=?63.54×54=?64.55×55=?65.56×56=?66.57×57=?67.58×58=?68.59×59=?69.60×60=?70.61×61=?71.62×62=?72.63×63=?73.64×64=?74.65×65=?75.66×66=?76.67×67=?77.68×68=?78.69×69=?79.70×70=?80.71×71=?81.72×72=?82.73×73=?83.74×74=?84.75×75=?85.76×76=?.77×77=?87.78×78=?88.79×79=?89.80×80=?90.81×81=?91.82×82=?92.83×83=?93.84×84=?94.85×85=?95.×=?96.87×87=?97.88×88=?98.89×89=?99.90×90=?100.91×91=?二、答案部分1.122.353.544.645.186.217.208.369.810.10011.412.913.1614.2515.3616.4917.6418.8119.10020.12121.14422.16923.19624.22525.25626.28927.32428.36129.40030.44131.48432.52933.57634.62535.67636.72937.78438.84139.90040.96141.102442.108943.115644.122545.129646.136947.144448.152149.160050.168151.176452.184953.193654.202555.211656.220957.230458.240159.250060.260161.270462.280963.291664.302565.313666.324967.336468.348169.360070.372171.384472.396973.409674.422575.435676.448977.462478.476179.490080.504181.518482.532983.547684.562585.5776.592987.608488.624189.640090.656191.672492.688993.705694.722595.739696.756997.774498.792199.8100100.8281二、答案部分(续)101.49102.9025103.9409104.9801105.10201106.10584107.10969108.11356109.11739110.12124111.12509112.12906113.13303114.13704115.14105116.14516117.14929118.15344119.15761120.16180121.16601122.17024123.17449124.17876125.18305126.18736127.19169128.19604129.20039130.20476131.20915132.21356133.21799134.22244135.22691136.23140137.23591138.24044139.24501140.24960141.25421142.25884143.26349144.26816145.27285146.27756147.28229148.28704149.29181150.29660151.30141152.30624153.31109154.31596155.32085156.32576157.33069158.33564159.34059160.34556161.35053162.35552163.36051164.36550165.37049166.37548167.38047168.38546169.39045170.39544171.40043172.40542173.41041174.41540175.42039176.42538177.43037178.43536179.44035180.44534181.45033182.45532183.46031184.46530185.470291.47528187.48027188.48526189.49025190.49524191.50023192.50522193.51021194.51520195.52019196.52518197.53017198.53516199.54015200.54514201.55013202.55512203.56011204.56510205.57009206.57508207.58007208.58506209.59005210.59504211.60003212.60502213.61001214.61500215.62099216.62598217.63097218.63596219.64095220.64594221.65093222.65592223.66091224.66590225.67089226.67588227.68087228.685229.69085230.69584231.70083232.70582233.71081234.71580235.72079236.72578237.73077238.73576239.74075240.74574241.75073242.75572243.76071244.76570245.77069246.77568247.78067248.78566249.79065250.79564251.80063252.80562253.81061254.81560255.82059256.82558257.83057258.83556259.84055260.84554261.85053262.85552263.051264.550265.87049266.87548267.88047268.88546269.89045270.89544271.90043272.90542273.91041274.91540275.92039276.92538277.93037278.93536279.94035280.94534281.95033282.95532283.96031284.96530285.970292.97528287.98027288.98526289.99025290.99524291.100023292.100522293.101021294.101520295.102019296.102518297.103017298.103516299.104015300.104514三、解题思路与技巧1.乘法口诀：对于一些常见的乘法组合，我们可以直接使用乘法口诀来快速得出答案。例如，对于3×4，我们可以直接想到“三四十二”。2.分解法：对于一些不太熟悉的乘法组合，我们可以尝试将其分解成更简单的乘法。例如，对于7×8，我们可以将其分解为7×(5+3)，即35+21，得到56。3.估算法：在时间紧迫的情况下，我们可以先估算出一个大致的范围，然后再进行精确计算。例如，对于8×9，我们可以先估算为70左右，然后再进行精确计算。4.心算法：对于一些简单的乘法，我们可以直接在心中进行计算，而不需要借助纸笔。这需要一定的练习和经验。5.重复练习：口算乘法能力的提高需要大量的练习。通过不断的练习，我们可以逐渐熟悉各种乘法组合，提