四年级上乘法交换律和结合律练习题
四年级乘法交换律和结合律强化训练题
小学四年级数学上册乘法交换律与结合律专项训练知识要点：123x 99 +123125 x 7+12579 x 99+79二、计算下列各题能简算要简算35x 10247x 10125x 4498x 37 87x 199 25x 19945x 201－45 38x 101－38 25x 199+2599x 201－99102x 83 125x 88乘法分配律 （a+b ） x c=a x c+b x c 乘法交换律 axb=b x a 一、计算下列各题 乘法结合律 (a >b) X c=a x (b >C) 加法结合律 (a+b)+c=a+(b+c)(25 x 125)x( 8X 4) (4+8)x 25 35x 37+65x 37135x 6+65x 6 43+25)x 40 8x( 125+7)18x 82+18x 47+18x 712 5x( 40－ 4) 16x 256－16 x 56125x( 80+8)69x 45+31 x 45 38x 29+384X 24+26X 24 30X 2+25X 2 (30X 25)X 4033X 15X 2 25 X 7X 4X 325X 50X 8 25 X 125X 16125X 32X 25 4X (25 X 9)16X 25X 12538X 5X 45X (19 X 2) 4X 45X 2525X 23X 8 125 X 72(25 X 125) X 32(30X 25) X 40(15X 25) X 415X (25 X 4)(6 X 12) X 56X (12 X 5)(13X 5) X 205 X (13 X20)125X 4835X 2X 5(60X 25) X 4125X 5X 864X 125125X 3225X 35X 16 125X 24124 X 25-25 X 24 (80+8)X 25 35X 37+65X 37135X 6+65X 643+25)X 40 8X ( 125+7)18X 82+18X 47+18X 71三、直接写得数25 X4= 4 25X 5X2= 12 5= (15X25) X4 =6 X12 X5)=8 125= 20 X5= 50 4=(6 X12) X5=13 (5 X20)=四、用简便方法计算4 X8 X25X12535 X2 X5=35 X( 2 J)125 X5 X8= (__ X_) X5(8 刈25)125 X8 X8 42 XI25 X8 25 X6 X4 (25 X4) X6 8X(7X2 5)125 X32 64 M25 2 5 XI(60X25)i X4=60 X(_ X _) X (4X25)8 X4 X125 X25 125X8 X4125 X16 16 252 2 7X4 X5125X 16 16X 25 56 X12525 X12836 X2525 X 12 25 X 24 X 5 28 X 25299X 120+120 38 X25 X4 8 X17 XI2523 X 3= 70 X5=13X100= 25 X4=125 X8= 125 X8=4 ><50=15X( 25X4)=(13 X5) X20=2 X50=1、 ① （36+64 ） X13 与 ② 36 X13+64 X 132、 ① 135 X 15+65 X 15 与②（135+65 ） X 153、 ① 101 X45 与② 100 X45+1 X 454、 ① 125 X 842 与② 125 X800+125 X 40+125 X2 二、判断下面的 5 组等式，应用乘法分配律用对的打1、 （7+8+9） X 10=7X 10+8X 10+92、 12X 9+3X 9 = 12+3 X 93、 （25+50） X 200 = 25 X 200+504、 101 X 63=100 X 63+635、 98 X 15= 100 X 15 + 2 1X 5） ） （） （）V ；应用错的打 （） （） （） （） ）80+8 ） X 2532 （X 200+3 ）38 39X +383528X + 7020X 17X 2X 5X 2X 21 10 X 2+90 X 2（110+90）X 2 12 X 105乘法分配律练习题 138X 62+38X 38 75X 14—70X 14101X 3812 X 98 55 X 99+55 55X 9912X 29+12 58X 199+58 42X 79+4252X 89 69X 101—69 55X 21—55125X （ 80+8） 125X （ 80X 8）125 X 32X 25乘法分配律练习题 2、选择。
人教版四年级 乘法交换律和结合律练习题
乘法交换律和结合律练习题一、仔细想，认真填1、两个数相加，交换加数的，和不变，这叫做。
用字母表示为。
2、三个数相加，先把相加，再与相加；或者先把相加，再与相加，它们的和不变，这叫做。
用字母表示为。
3、两个数相乘，交换乘数的，积不变，这叫做。
用字母表示为。
4、三个数相乘，先把相乘，再与相乘；或者先把相乘，再与相乘，它们的积不变，这叫做。
用字母表示为。
5、73+99+27=99+(73+27) 是根据加法( )律和( )律；9×125×8 =9×(125×8)，这里运用了乘法( )律；(25×37)×4=37×(25×4）。
这里运用了乘法( )律和( )律。
6、在○里填＞、＜或＝符号。
125×24○125×8×327×4×25○27×(4×25)67×8○68×77、在□内填上数，在○内填上运算符号，在横线上填上运用的运算定律。
29＋37＋171＝37＋（□○□）。
42×5×8＝42×（□○□）。
47＋□＝28○□。
427＋39＋73＝(427+□)○□。
35×21×2＝21×(□○□) 。
8、计算64×26后，可以交换两个乘数的位置进行验算，是运用了（）律。
9、25×（20×39）＝（25×20）×39 这是运用了（）律。
10、用简便方法计算76＋98＋24，要先算（），这是根据（）律。
二、对号入座：（把正确的答案的序号填在括号里）1、下面一个零也不读的数是( )。
A.600030B.603000C.6003002、与480×40的积一样的算式是( )。
A.48×40B.480×400C.48×4003、用两个4和三个0可以组成( )个不同的五位数。
四年级上学期运算律练习题
四年级上学期运算律练习题1. 加法运算律对于任意三个自然数a、b和c，满足结合律和交换律的加法运算规律如下：a + (b + c) = (a + b) +c = a + b + c练习题：a) 3 + (5 + 2) = (3 + 5) + 2 = ?b) 7 + 9 + 2 = 9 + (7 + 2) = ?c) (4 + 6) + 8 = 4 + (6 + 8) = ?d) 2 + (3 + 4) = (2 + 3) + 4 = ?2. 减法运算律对于任意三个自然数a、b和c，满足结合律的减法运算规律如下：(a - b) - c = a - (b + c)练习题：a) (9 - 4) - 2 = 9 - (4 - 2) = ?b) 10 - (5 - 3) = (10 - 5) - 3 = ?c) 7 - (3 - 2) = (7 - 3) - 2 = ?d) (8 - 2) - 3 = 8 - (2 + 3) = ?3. 乘法运算律对于任意三个自然数a、b和c，满足结合律和交换律的乘法运算规律如下：a × (b × c) = (a × b) ×c = a × b × c练习题：a) 4 × (3 × 2) = (4 × 3) × 2 = ?b) 6 × 2 × 5 = 2 × 5 × (6 × 2) = ?c) (7 × 2) × 4 = 7 × (2 × 4) = ?d) 3 × (2 × 8) = (3 × 2) × 8 = ?4. 除法运算律对于任意三个非零自然数a、b和c，满足结合律的除法运算规律如下：(a ÷ b) ÷ c = a ÷ (b × c)练习题：a) (12 ÷ 6) ÷ 2 = 12 ÷ (6 × 2) = ?b) 24 ÷ (2 ÷ 4) = (24 ÷ 2) ÷ 4 = ?c) 16 ÷ (4 ÷ 2) = (16 ÷ 4) ÷ 2 = ?d) (18 ÷ 3) ÷ 2 = 18 ÷ (3 × 2) = ?5. 混合运算律在运算时，可以根据需要适当地添加小括号，以确保按照运算律的定义进行计算。
(完整)四年级运算定律练习题
运算定律练习题（1）乘法交换律：a×b＝b×a 乘法结合律：（a×b）×c＝a×（b×c）38×25×4 42×125×8 25×17×4 （25×125）×（8×4）49×4×538×125×8×3 (125×25)×4 5 ×289×2 （125×12）×8 125×（12×4）(2) 乘法交换律和结合律的变化练习125×64 125×88 44×25 125×24 25×28（3）加法交换律：a＋b＝b＋a 加法结合律：（a＋b）＋c＝a＋（b＋c）357＋288＋143 158＋395＋105 167＋289＋33 129＋235＋171＋165 378＋527＋73 169＋78＋22 58＋39＋42＋61 138＋293＋62＋107（4）乘法分配律：（a＋b）×c＝a×c＋b×c 正用练习（80＋4）×25 （20＋4）×25 （125＋17）×8 25×（40＋4）15×（20＋3）（5）乘法分配律正用的变化练习：36×3 25×41 39×101 125×88 201×24 （6）乘法分配律反用的练习：34×72＋34×28 35×37＋65×37 85×82＋85×1825×97＋25×3 76×25＋25×24（7）乘法分配律反用的变化练习：38×29＋38 75×299＋75 64×199＋64 35×68＋68＋68×64☆思考题：（8）其他的一些简便运算。
四年级练习题乘法交换律与结合律
四年级上册第三单元——乘法交换律与结合律一、仔细想，认真填1、两个数相加，交换加数的，和不变，这叫做。
用字母表示为。
2、三个数相加，先把相加，再与相加；或者先把相加，再与相加，它们的和不变，这叫做。
用字母表示为。
3、两个数相乘，交换乘数的，积不变，这叫做。
用字母表示为。
4、三个数相乘，先把相乘，再与相乘；或者先把相乘，再与相乘，它们的积不变，这叫做。
用字母表示为。
5、用字母a、b、c表示下面运算定律：（l）加法交换律（）；（2）加法结合律（）；（3）乘法交换律（）；（4）乘法结合律（）。
6、73+99+27=99+(73+27) 是根据加法( )律和( )律；9×125×8 =9×(125×8)，这里运用了乘法( )律；(25×37)×4=37×(25×4）。
这里运用了乘法( )律和( )律。
4、在○里填＞、＜或＝符号。
125×24○125×8×3 27×4×25○27×(4×25) 67×8○68×75、在□内填上数，在○内填上运算符号，在横线上填上运用的运算定律。
29＋37＋171＝37＋（□○□）。
42×5×8＝42×（□○□）。
47＋□＝28○□。
427＋39＋73＝(427+□)○□。
35×21×2＝21×(□○□) 。
6、计算64×26后，可以交换两个乘数的位置进行验算，是运用了（）律。
7、25×（20×39）＝（25×20）×39 这是运用了（）律。
8、用简便方法计算76＋98＋24，要先算（），这是根据（）律。
二、对号入座：（把正确的答案的序号填在括号里）1、下面一个零也不读的数是( )。
A.600030B.603000C.6003002、与480×40的积一样的算式是( )。
乘法交换律结合律分配律练习题
乘法交换律结合律分配律练习题135×6+65×6×40×18×82+18×47+18×71× 16×256－16×56125× 9×45+31×4538×29+38123×9+1212×7+12×99+7935×1027×101 5×4445×201－4598×3738×101－37×19925×199+2525×1999×201－9 102×125×88124×25－25×24×25×37+65×37135×6+65×6125×3125×8××6×40 ×18×82+18×47+18×714×24+26×20×2+25×2×40× 15××××20 13×9×120+12038×25×48×17×125××4×125×2564×125125×1616×25２７×４×５８×195×25×42×125×8×520×17×2×5×2×110×2+90××8×25×12525×6×4125×8×2×125×２５×１２ 125×489×12×105 乘法分配律练习题338×62+38×385×14—70×1101×3812×985×99+555×9912×29+1258×199+582×79+4269×101—695×21—5125×125× 9×99+998×7+31×1479×25+22×25—225×46+50×27乘法分配律练习题2一、选择。
口算题 (乘法交换律和结合律) 1000题
8 × 125 × 8 = 25 × 73 × 4 = 25 × 84 × 4 = 86 × 25 × 4 = 88 × 25 × 4 = 17 × 25 × 4 = 25 × 47 × 4 = 38 × 25 × 4 = 25 × 25 × 4 = 125 × 5 × 8 = 42 × 25 × 4 = 8000 ÷ 8 ÷ 125 = 3000 ÷ 25 ÷ 4 = 14 × 25 × 4 = 25 × 91 × 4 = 6700 ÷ 25 ÷ 4 = 96 × 25 × 4 = 25 × 87 × 4 = 125 × 2 × 8 = 125 × 15 × 8 = 16000 ÷ 8 ÷ 125 = 13000 ÷ 25 ÷ 4 = 25 × 6 × 4 = 13000 ÷ 8 ÷ 125 = 5 × 125 × 8 = 25 × 66 × 4 = 2000 ÷ 25 ÷ 4 = 12000 ÷ 125 ÷ 8 = 800 ÷ 25 ÷ 4 = 14 × 125 × 8 = 7 × 125 × 8 = 25 × 26 × 4 = 62 × 25 × 4 = 1000 ÷ 8 ÷ 125 = 125 × 8 × 8 = 30 × 25 × 4 = 25 × 22 × 4 = 125 × 18 × 8 = 10000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 52 × 25 × 4 = 76 × 25 × 4 = 10000 ÷ 4 ÷ 25 =18 × 25 × 4 =15000 ÷ 8 ÷ 125 =练习范围： 月 日 姓名: 乘法交换律和结合律题数： 100 分 秒 成绩:25 × 59 × 4 =7800 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 = 18 × 125 × 8 =15 × 125 × 8 =7000 ÷ 125 ÷ 8 = 125 × 16 × 8 =1000 ÷ 125 ÷ 8 =7000 ÷ 25 ÷ 4 = 20000 ÷ 4 ÷ 25 =19000 ÷ 8 ÷ 125 =25 × 40 × 4 =25 × 75 × 4 =13 × 125 × 8 =11000 ÷ 8 ÷ 125 = 34 × 25 × 4 =10000 ÷ 125 ÷ 8 =20000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 =19 × 125 × 8 =7000 ÷ 8 ÷ 125 = 25 × 12 × 4 =10 × 125 × 8 =12000 ÷ 4 ÷ 25 = 2000 ÷ 125 ÷ 8 =20000 ÷ 25 ÷ 4 = 3 × 125 × 8 =28 × 25 × 4 =10000 ÷ 25 ÷ 4 =3000 ÷ 125 ÷ 8 = 85 × 25 × 4 =25 × 60 × 4 =6600 ÷ 25 ÷ 4 = 24 × 25 × 4 =18000 ÷ 125 ÷ 8 =26 × 25 × 4 =20 × 125 × 8 = 6 × 125 × 8 =125 × 6 × 8 =74 × 25 × 4 =25 × 48 × 4 =20000 ÷ 8 ÷ 125 = 125 × 10 × 8 =19000 ÷ 125 ÷ 8 =25 × 98 × 4 = 125 × 17 × 8 =5900 ÷ 25 ÷ 4 =8000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 4 × 125 × 8 =125 × 3 × 8 =12 × 25 × 4 =16 × 125 × 8 =3000 ÷ 4 ÷ 25 = 5500 ÷ 25 ÷ 4 =25 × 33 × 4 = 13000 ÷ 125 ÷ 8 = 25 × 79 × 4 = 18 × 25 × 4 = 20000 ÷ 125 ÷ 8 = 34 × 25 × 4 = 94 × 25 × 4 = 13 × 25 × 4 = 20 × 25 × 4 = 14 × 25 × 4 = 8000 ÷ 125 ÷ 8 = 125 × 6 × 8 = 16 × 125 × 8 = 25 × 58 × 4 = 12000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 8000 ÷ 8 ÷ 125 = 125 × 16 × 8 = 11000 ÷ 8 ÷ 125 = 1000 ÷ 8 ÷ 125 = 8200 ÷ 25 ÷ 4 = 5 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 13 × 125 × 8 = 125 × 2 × 8 = 3 × 25 × 4 = 800 ÷ 25 ÷ 4 = 62 × 25 × 4 = 10000 ÷ 4 ÷ 25 = 5000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 20 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 2900 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 4000 ÷ 125 ÷ 8 = 25 × 49 × 4 = 6300 ÷ 25 ÷ 4 = 24 × 25 × 4 = 125 × 18 × 8 = 2000 ÷ 8 ÷ 125 = 2 × 125 × 8 =96 × 25 × 4 =11000 ÷ 25 ÷ 4 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒8 × 125 × 8 =16000 ÷ 8 ÷ 125 =17 × 25 × 4 = 13000 ÷ 8 ÷ 125 =6700 ÷ 25 ÷ 4 = 4 × 125 × 8 = 11000 ÷ 4 ÷ 25 =4000 ÷ 25 ÷ 4 =125 × 19 × 8 = 3000 ÷ 125 ÷ 8 =9600 ÷ 25 ÷ 4 = 3 × 125 × 8 = 3000 ÷ 25 ÷ 4 =25 × 34 × 4 =25 × 98 × 4 =52 × 25 × 4 =25 × 59 × 4 =4000 ÷ 8 ÷ 125 = 15000 ÷ 4 ÷ 25 =25 × 43 × 4 =1700 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 =25 × 60 × 4 =18 × 125 × 8 = 56 × 25 × 4 =7100 ÷ 25 ÷ 4 =19000 ÷ 125 ÷ 8 = 2000 ÷ 4 ÷ 25 =6000 ÷ 4 ÷ 25 =1600 ÷ 25 ÷ 4 = 11 × 25 × 4 =8400 ÷ 25 ÷ 4 =25 × 73 × 4 = 7000 ÷ 125 ÷ 8 =7000 ÷ 4 ÷ 25 = 6 × 25 × 4 = 9100 ÷ 25 ÷ 4 =19000 ÷ 4 ÷ 25 =17 × 125 × 8 = 9000 ÷ 125 ÷ 8 =19 × 125 × 8 =25 × 5 × 4 =25 × 12 × 4 =20000 ÷ 4 ÷ 25 =125 × 5 × 8 = 10000 ÷ 8 ÷ 125 =54 × 25 × 4 =25 × 91 × 4 = 14000 ÷ 4 ÷ 25 =125 × 4 × 8 =25 × 92 × 4 =25 × 26 × 4 = 4 × 25 × 4 =16000 ÷ 125 ÷ 8 = 15 × 25 × 4 =10 × 125 × 8 = 28 × 25 × 4 = 6500 ÷ 25 ÷ 4 = 10000 ÷ 25 ÷ 4 = 17000 ÷ 4 ÷ 25 = 15 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 125 × 16 × 8 = 125 × 20 × 8 = 14000 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 16 × 125 × 8 = 200 ÷ 25 ÷ 4 = 125 × 14 × 8 = 25 × 48 × 4 = 9 × 125 × 8 = 125 × 6 × 8 = 25 × 36 × 4 = 125 × 5 × 8 = 125 × 18 × 8 = 25 × 79 × 4 = 25 × 60 × 4 = 125 × 4 × 8 = 25 × 32 × 4 = 3000 ÷ 4 ÷ 25 = 25 × 61 × 4 = 125 × 7 × 8 = 74 × 25 × 4 = 125 × 19 × 8 = 8000 ÷ 8 ÷ 125 = 72 × 25 × 4 = 800 ÷ 25 ÷ 4 = 8 × 25 × 4 = 19 × 125 × 8 = 25 × 59 × 4 = 125 × 9 × 8 = 3000 ÷ 25 ÷ 4 = 5 × 125 × 8 = 2 × 125 × 8 = 6 × 125 × 8 = 25 × 92 × 4 = 4 × 125 × 8 = 1900 ÷ 25 ÷ 4 =6000 ÷ 125 ÷ 8 =13000 ÷ 4 ÷ 25 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒125 × 10 × 8 =2000 ÷ 4 ÷ 25 =17 × 25 × 4 = 15000 ÷ 125 ÷ 8 =15000 ÷ 4 ÷ 25 =17 × 125 × 8 = 7000 ÷ 25 ÷ 4 =10000 ÷ 8 ÷ 125 =25 × 40 × 4 =20 × 125 × 8 =8000 ÷ 4 ÷ 25 =125 × 13 × 8 = 18 × 25 × 4 =18 × 125 × 8 =4000 ÷ 125 ÷ 8 = 4000 ÷ 25 ÷ 4 =1000 ÷ 8 ÷ 125 =7300 ÷ 25 ÷ 4 = 1000 ÷ 125 ÷ 8 =12000 ÷ 8 ÷ 125 =19000 ÷ 125 ÷ 8 = 77 × 25 × 4 =67 × 25 × 4 =7000 ÷ 8 ÷ 125 = 5000 ÷ 125 ÷ 8 =25 × 39 × 4 =6000 ÷ 8 ÷ 125 = 125 × 12 × 8 =15000 ÷ 8 ÷ 125 =25 × 58 × 4 = 16000 ÷ 8 ÷ 125 =20000 ÷ 4 ÷ 25 =25 × 43 × 4 = 7000 ÷ 125 ÷ 8 =25 × 89 × 4 =25 × 99 × 4 =12 × 25 × 4 =25 × 26 × 4 =5100 ÷ 25 ÷ 4 = 5900 ÷ 25 ÷ 4 =25 × 52 × 4 =19000 ÷ 8 ÷ 125 = 25 × 17 × 4 =24 × 25 × 4 =18000 ÷ 125 ÷ 8 = 25 × 16 × 4 =2400 ÷ 25 ÷ 4 =16000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 =12 × 125 × 8 =25 × 73 × 4 =25 × 66 × 4 =3000 ÷ 125 ÷ 8 =25 × 34 × 4 =3 × 125 × 8 =13000 ÷ 8 ÷ 125 = 25 × 79 × 4 = 25 × 23 × 4 = 125 × 5 × 8 = 8000 ÷ 4 ÷ 25 = 40 × 25 × 4 = 17 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 25 × 48 × 4 = 125 × 16 × 8 = 25 × 43 × 4 = 25 × 59 × 4 = 19000 ÷ 125 ÷ 8 = 6000 ÷ 4 ÷ 25 = 25 × 52 × 4 = 87 × 25 × 4 = 125 × 19 × 8 = 25 × 19 × 4 = 2000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 17000 ÷ 25 ÷ 4 = 51 × 25 × 4 = 9000 ÷ 125 ÷ 8 = 5600 ÷ 25 ÷ 4 = 12 × 25 × 4 = 8 × 125 × 8 = 25 × 40 × 4 = 9300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 = 10000 ÷ 8 ÷ 125 = 38 × 25 × 4 = 3000 ÷ 25 ÷ 4 = 5 × 25 × 4 = 14 × 125 × 8 = 125 × 9 × 8 = 25 × 26 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 16000 ÷ 4 ÷ 25 = 5000 ÷ 25 ÷ 4 = 25 × 73 × 4 = 17000 ÷ 4 ÷ 25 =18000 ÷ 125 ÷ 8 =800 ÷ 25 ÷ 4 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒125 × 4 × 8 =2800 ÷ 25 ÷ 4 =7000 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =26 × 25 × 4 =3000 ÷ 125 ÷ 8 = 25 × 27 × 4 =84 × 25 × 4 =12000 ÷ 125 ÷ 8 = 25 × 58 × 4 =4500 ÷ 25 ÷ 4 =3600 ÷ 25 ÷ 4 = 11000 ÷ 25 ÷ 4 =20 × 125 × 8 =77 × 25 × 4 =46 × 25 × 4 =13000 ÷ 125 ÷ 8 =18 × 25 × 4 = 10000 ÷ 4 ÷ 25 =9500 ÷ 25 ÷ 4 =24 × 25 × 4 = 125 × 12 × 8 =15000 ÷ 8 ÷ 125 =15 × 125 × 8 = 13 × 125 × 8 =4000 ÷ 25 ÷ 4 =74 × 25 × 4 =25 × 34 × 4 =5900 ÷ 25 ÷ 4 =125 × 20 × 8 = 17 × 125 × 8 =11000 ÷ 8 ÷ 125 =8 × 25 × 4 = 15000 ÷ 125 ÷ 8 =8000 ÷ 125 ÷ 8 =18 × 125 × 8 = 25 × 70 × 4 =8600 ÷ 25 ÷ 4 = 4 × 125 × 8 = 10000 ÷ 25 ÷ 4 =6400 ÷ 25 ÷ 4 =25 × 45 × 4 =96 × 25 × 4 =72 × 25 × 4 =9 × 25 × 4 =42 × 25 × 4 =19000 ÷ 25 ÷ 4 =16000 ÷ 125 ÷ 8 = 25 × 5 × 4 =7800 ÷ 25 ÷ 4 =25 × 91 × 4 =125 × 2 × 8 =71 × 25 × 4 = 3000 ÷ 4 ÷ 25 =7000 ÷ 4 ÷ 25 =3000 ÷ 125 ÷ 8 = 25 × 33 × 4 = 14000 ÷ 125 ÷ 8 = 7000 ÷ 4 ÷ 25 = 2000 ÷ 8 ÷ 125 = 6200 ÷ 25 ÷ 4 = 25 × 75 × 4 = 2600 ÷ 25 ÷ 4 = 25 × 44 × 4 = 125 × 18 × 8 = 25 × 48 × 4 = 12 × 25 × 4 = 2000 ÷ 125 ÷ 8 = 8800 ÷ 25 ÷ 4 = 13 × 125 × 8 = 85 × 25 × 4 = 7000 ÷ 125 ÷ 8 = 18000 ÷ 8 ÷ 125 = 87 × 25 × 4 = 62 × 25 × 4 = 19000 ÷ 125 ÷ 8 = 6700 ÷ 25 ÷ 4 = 25 × 58 × 4 = 3900 ÷ 25 ÷ 4 = 96 × 25 × 4 = 19 × 125 × 8 = 8000 ÷ 125 ÷ 8 = 12000 ÷ 125 ÷ 8 = 74 × 25 × 4 = 13000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 = 1000 ÷ 8 ÷ 125 = 4 × 125 × 8 = 8 × 25 × 4 = 7500 ÷ 25 ÷ 4 = 7000 ÷ 8 ÷ 125 = 25 × 92 × 4 = 42 × 25 × 4 = 12 × 125 × 8 = 12000 ÷ 8 ÷ 125 = 6 × 125 × 8 = 125 × 8 × 8 = 125 × 20 × 8 =7 × 125 × 8 =25 × 32 × 4 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒5000 ÷ 25 ÷ 4 =58 × 25 × 4 =4000 ÷ 125 ÷ 8 = 10 × 125 × 8 =11000 ÷ 125 ÷ 8 =25 × 12 × 4 = 6000 ÷ 125 ÷ 8 =11000 ÷ 8 ÷ 125 =25 × 13 × 4 = 7000 ÷ 25 ÷ 4 =25 × 49 × 4 =125 × 11 × 8 = 14 × 25 × 4 =17000 ÷ 125 ÷ 8 =25 × 35 × 4 = 8200 ÷ 25 ÷ 4 =17000 ÷ 8 ÷ 125 =20 × 125 × 8 = 11 × 125 × 8 =6000 ÷ 4 ÷ 25 =25 × 2 × 4 =125 × 7 × 8 =125 × 4 × 8 =10000 ÷ 8 ÷ 125 = 125 × 9 × 8 =16 × 125 × 8 =32 × 25 × 4 = 5000 ÷ 125 ÷ 8 =25 × 28 × 4 =8000 ÷ 8 ÷ 125 = 54 × 25 × 4 =6100 ÷ 25 ÷ 4 =125 × 12 × 8 = 77 × 25 × 4 =29 × 25 × 4 =25 × 66 × 4 =66 × 25 × 4 =25 × 76 × 4 =25 × 5 × 4 =15 × 125 × 8 =78 × 25 × 4 =10000 ÷ 25 ÷ 4 = 1000 ÷ 4 ÷ 25 =52 × 25 × 4 =25 × 60 × 4 =17 × 25 × 4 =14000 ÷ 8 ÷ 125 =18000 ÷ 125 ÷ 8 = 6400 ÷ 25 ÷ 4 =11000 ÷ 4 ÷ 25 =8000 ÷ 4 ÷ 25 =2000 ÷ 4 ÷ 25 =3000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 =125 × 5 × 8 =1000 ÷ 125 ÷ 8 = 18000 ÷ 125 ÷ 8 = 24 × 25 × 4 = 6 × 125 × 8 = 125 × 13 × 8 = 3 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 18000 ÷ 8 ÷ 125 = 25 × 59 × 4 = 80 × 25 × 4 = 18 × 25 × 4 = 4 × 125 × 8 = 12000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 67 × 25 × 4 = 64 × 25 × 4 = 25 × 34 × 4 = 46 × 25 × 4 = 5600 ÷ 25 ÷ 4 = 5 × 25 × 4 = 25 × 4 × 4 = 16000 ÷ 125 ÷ 8 = 125 × 9 × 8 = 25 × 73 × 4 = 11000 ÷ 4 ÷ 25 = 65 × 25 × 4 = 25 × 49 × 4 = 125 × 6 × 8 = 16000 ÷ 8 ÷ 125 = 7000 ÷ 4 ÷ 25 = 19 × 125 × 8 = 25 × 12 × 4 = 5000 ÷ 125 ÷ 8 = 8000 ÷ 125 ÷ 8 = 17000 ÷ 8 ÷ 125 = 3000 ÷ 125 ÷ 8 = 12 × 25 × 4 = 125 × 4 × 8 = 88 × 25 × 4 = 92 × 25 × 4 = 10000 ÷ 25 ÷ 4 = 87 × 25 × 4 =2600 ÷ 25 ÷ 4 =125 × 2 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒25 × 66 × 4 =34 × 25 × 4 =23 × 25 × 4 = 85 × 25 × 4 =1000 ÷ 8 ÷ 125 =28 × 25 × 4 = 5000 ÷ 8 ÷ 125 =25 × 43 × 4 =125 × 7 × 8 = 20000 ÷ 25 ÷ 4 =13000 ÷ 8 ÷ 125 =8000 ÷ 4 ÷ 25 = 16 × 125 × 8 = 3 × 125 × 8 =1000 ÷ 25 ÷ 4 = 19000 ÷ 125 ÷ 8 =54 × 25 × 4 =125 × 15 × 8 = 25 × 40 × 4 =18000 ÷ 4 ÷ 25 =2500 ÷ 25 ÷ 4 = 9 × 125 × 8 =7000 ÷ 8 ÷ 125 =12 × 125 × 8 = 91 × 25 × 4 =16000 ÷ 4 ÷ 25 =125 × 19 × 8 = 12000 ÷ 4 ÷ 25 =3900 ÷ 25 ÷ 4 =3000 ÷ 25 ÷ 4 = 6400 ÷ 25 ÷ 4 =62 × 25 × 4 =8 × 125 × 8 = 25 × 92 × 4 =20000 ÷ 4 ÷ 25 =25 × 79 × 4 = 25 × 38 × 4 =3000 ÷ 4 ÷ 25 =7000 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 =25 × 91 × 4 =4300 ÷ 25 ÷ 4 = 10000 ÷ 4 ÷ 25 =99 × 25 × 4 =9000 ÷ 125 ÷ 8 = 17 × 25 × 4 =19000 ÷ 4 ÷ 25 =25 × 27 × 4 = 6700 ÷ 25 ÷ 4 =14000 ÷ 125 ÷ 8 =125 × 11 × 8 = 25 × 48 × 4 =25 × 58 × 4 =14000 ÷ 4 ÷ 25 = 70 × 25 × 4 =125 × 18 × 8 = 24 × 25 × 4 = 25 × 72 × 4 = 18000 ÷ 125 ÷ 8 = 125 × 2 × 8 = 9 × 125 × 8 = 27 × 25 × 4 = 5000 ÷ 125 ÷ 8 = 5400 ÷ 25 ÷ 4 = 6000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 54 × 25 × 4 = 125 × 16 × 8 = 3400 ÷ 25 ÷ 4 = 16 × 125 × 8 = 25 × 79 × 4 = 125 × 19 × 8 = 42 × 25 × 4 = 125 × 8 × 8 = 8 × 25 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 3000 ÷ 4 ÷ 25 = 3 × 25 × 4 = 13000 ÷ 8 ÷ 125 = 25 × 36 × 4 = 16000 ÷ 8 ÷ 125 = 12 × 125 × 8 = 4000 ÷ 125 ÷ 8 = 17000 ÷ 125 ÷ 8 = 12000 ÷ 4 ÷ 25 = 5 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 3 × 125 × 8 = 73 × 25 × 4 = 800 ÷ 25 ÷ 4 = 41 × 25 × 4 = 5 × 125 × 8 = 48 × 25 × 4 = 3000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 43 × 4 = 15000 ÷ 8 ÷ 125 =68 × 25 × 4 =13 × 125 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒10000 ÷ 125 ÷ 8 =6000 ÷ 8 ÷ 125 =47 × 25 × 4 =25 × 71 × 4 =1000 ÷ 25 ÷ 4 =25 × 48 × 4 =34 × 25 × 4 =9500 ÷ 25 ÷ 4 =19 × 125 × 8 = 17 × 25 × 4 =10000 ÷ 25 ÷ 4 =8000 ÷ 4 ÷ 25 = 125 × 15 × 8 =10000 ÷ 4 ÷ 25 =67 × 25 × 4 = 125 × 5 × 8 =25 × 74 × 4 =125 × 10 × 8 = 15000 ÷ 125 ÷ 8 =125 × 13 × 8 =11 × 125 × 8 = 25 × 34 × 4 =16 × 25 × 4 =25 × 60 × 4 = 125 × 7 × 8 =19000 ÷ 125 ÷ 8 =8300 ÷ 25 ÷ 4 = 8200 ÷ 25 ÷ 4 =8 × 125 × 8 =12 × 25 × 4 = 3000 ÷ 25 ÷ 4 =17000 ÷ 8 ÷ 125 =14000 ÷ 8 ÷ 125 = 125 × 17 × 8 =6700 ÷ 25 ÷ 4 =84 × 25 × 4 =25 × 80 × 4 =10000 ÷ 8 ÷ 125 =12000 ÷ 8 ÷ 125 = 25 × 75 × 4 =62 × 25 × 4 =9000 ÷ 8 ÷ 125 = 87 × 25 × 4 =125 × 6 × 8 =77 × 25 × 4 =25 × 26 × 4 =25 × 13 × 4 = 6 × 125 × 8 =25 × 92 × 4 =46 × 25 × 4 =7900 ÷ 25 ÷ 4 = 85 × 25 × 4 =125 × 9 × 8 =1000 ÷ 8 ÷ 125 = 25 × 98 × 4 =5 × 125 × 8 = 7000 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 9000 ÷ 125 ÷ 8 = 2000 ÷ 8 ÷ 125 = 74 × 25 × 4 = 6400 ÷ 25 ÷ 4 = 20000 ÷ 125 ÷ 8 = 25 × 66 × 4 = 13 × 125 × 8 = 51 × 25 × 4 = 19000 ÷ 4 ÷ 25 = 12 × 125 × 8 = 25 × 74 × 4 = 6000 ÷ 4 ÷ 25 = 5000 ÷ 8 ÷ 125 = 5600 ÷ 25 ÷ 4 = 62 × 25 × 4 = 25 × 26 × 4 = 125 × 3 × 8 = 25 × 60 × 4 = 25 × 73 × 4 = 46 × 25 × 4 = 25 × 40 × 4 = 25 × 37 × 4 = 5000 ÷ 125 ÷8 = 25 × 35 × 4 = 4000 ÷ 8 ÷ 125 = 6000 ÷ 125 ÷ 8 = 17 × 125 × 8 = 16000 ÷ 125 ÷ 8 = 10000 ÷ 8 ÷ 125 = 34 × 25 × 4 = 5800 ÷ 25 ÷ 4 = 15 × 125 × 8 = 25 × 34 × 4 = 24 × 25 × 4 = 6700 ÷ 25 ÷ 4 = 125 × 16 × 8 = 8 × 25 × 4 = 15000 ÷ 125 ÷ 8 = 25 × 98 × 4 = 77 × 25 × 4 =20 × 125 × 8 =4000 ÷ 125 ÷ 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒18 × 125 × 8 =3000 ÷ 4 ÷ 25 =25 × 43 × 4 =25 × 91 × 4 =3000 ÷ 125 ÷ 8 =90 × 25 × 4 = 16000 ÷ 4 ÷ 25 =7000 ÷ 8 ÷ 125 =15000 ÷ 8 ÷ 125 = 18000 ÷ 125 ÷ 8 =2000 ÷ 4 ÷ 25 = 4 × 125 × 8 =87 × 25 × 4 =12000 ÷ 8 ÷ 125 =800 ÷ 25 ÷ 4 = 10000 ÷ 125 ÷ 8 =25 × 88 × 4 =19 × 125 × 8 = 16 × 25 × 4 =125 × 2 × 8 =125 × 14 × 8 = 6100 ÷ 25 ÷ 4 =96 × 25 × 4 =7000 ÷ 125 ÷ 8 = 25 × 75 × 4 =300 ÷ 25 ÷ 4 =11000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 =125 × 5 × 8 =55 × 25 × 4 =25 × 92 × 4 =25 × 6 × 4 =7 × 125 × 8 =18 × 25 × 4 =25 × 48 × 4 =125 × 7 × 8 =11 × 125 × 8 =1000 ÷ 4 ÷ 25 =125 × 17 × 8 = 85 × 25 × 4 =1000 ÷ 8 ÷ 125 =3300 ÷ 25 ÷ 4 = 25 × 12 × 4 =16000 ÷ 8 ÷ 125 =25 × 50 × 4 = 125 × 6 × 8 =125 × 10 × 8 =6000 ÷ 25 ÷ 4 = 38 × 25 × 4 =12000 ÷ 4 ÷ 25 =2000 ÷ 125 ÷ 8 = 6 × 125 × 8 =25 × 2 × 4 =2300 ÷ 25 ÷ 4 = 19000 ÷ 8 ÷ 125 =6000 ÷ 125 ÷ 8 = 10 × 125 × 8 = 1000 ÷ 4 ÷ 25 = 96 × 25 × 4 = 18 × 125 × 8 = 27 × 25 × 4 = 16000 ÷ 8 ÷ 125 = 1100 ÷ 25 ÷ 4 = 7000 ÷ 125 ÷ 8 = 9000 ÷ 125 ÷ 8 = 25 × 46 × 4 = 25 × 40 × 4 = 6000 ÷ 4 ÷ 25 = 5600 ÷ 25 ÷ 4 = 20000 ÷ 25 ÷ 4 = 125 × 11 × 8 = 25 × 53 × 4 = 52 × 25 × 4 = 83 × 25 × 4 = 25 × 48 × 4 = 125 × 15 × 8 = 13 × 125 × 8 = 100 ÷ 25 ÷ 4 = 98 × 25 × 4 = 7000 ÷ 25 ÷ 4 = 18000 ÷ 125 ÷ 8 = 25 × 24 × 4 = 15000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 1000 ÷ 125 ÷ 8 = 25 × 59 × 4 = 25 × 55 × 4 = 15 × 125 × 8 = 6400 ÷ 25 ÷ 4 = 8 × 25 × 4 = 54 × 25 × 4 = 25 × 67 × 4 = 16000 ÷ 4 ÷ 25 = 25 × 91 × 4 = 10000 ÷ 25 ÷ 4 = 25 × 34 × 4 = 2000 ÷ 125 ÷ 8 = 125 × 9 × 8 =1000 ÷ 8 ÷ 125 =125 × 10 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒3000 ÷ 4 ÷ 25 =34 × 25 × 4 =3400 ÷ 25 ÷ 4 = 25 × 61 × 4 =125 × 12 × 8 =25 × 66 × 4 = 19000 ÷ 125 ÷ 8 =3000 ÷ 125 ÷ 8 =4000 ÷ 8 ÷ 125 = 9200 ÷ 25 ÷ 4 =25 × 79 × 4 =7000 ÷ 8 ÷ 125 = 5000 ÷ 8 ÷ 125 =62 × 25 × 4 =16 × 125 × 8 = 14 × 25 × 4 =25 × 56 × 4 =5000 ÷ 4 ÷ 25 = 19000 ÷ 4 ÷ 25 =25 × 73 × 4 =7800 ÷ 25 ÷ 4 = 25 × 20 × 4 =25 × 76 × 4 = 6 × 125 × 8 = 7000 ÷ 4 ÷ 25 =85 × 25 × 4 =125 × 16 × 8 = 8 × 125 × 8 =9000 ÷ 4 ÷ 25 =25 × 75 × 4 =17 × 25 × 4 =125 × 19 × 8 = 5 × 125 × 8 =18 × 25 × 4 =11000 ÷ 125 ÷ 8 =25 × 58 × 4 = 125 × 4 × 8 =25 × 95 × 4 =25 × 81 × 4 = 10000 ÷ 4 ÷ 25 =12000 ÷ 4 ÷ 25 =25 × 60 × 4 = 17 × 125 × 8 =11000 ÷ 4 ÷ 25 =87 × 25 × 4 = 18000 ÷ 4 ÷ 25 =3000 ÷ 25 ÷ 4 =125 × 5 × 8 = 25 × 52 × 4 =8200 ÷ 25 ÷ 4 = 5 × 25 × 4 =42 × 25 × 4 =600 ÷ 25 ÷ 4 = 8000 ÷ 125 ÷ 8 =14000 ÷ 4 ÷ 25 =19 × 125 × 8 = 19000 ÷ 125 ÷ 8 = 54 × 25 × 4 = 125 × 16 × 8 = 3000 ÷ 125 ÷ 8 = 25 × 82 × 4 = 125 × 10 × 8 = 66 × 25 × 4 = 34 × 25 × 4 = 3700 ÷ 25 ÷ 4 = 25 × 56 × 4 = 15 × 125 × 8 = 14 × 25 × 4 = 6000 ÷ 8 ÷ 125 = 125 × 19 × 8 = 25 × 40 × 4 = 13 × 125 × 8 = 3900 ÷ 25 ÷ 4 = 14000 ÷ 8 ÷ 125 = 8700 ÷ 25 ÷ 4 = 9000 ÷ 25 ÷ 4 = 16000 ÷ 8 ÷ 125 = 24 × 25 × 4 = 2000 ÷ 4 ÷ 25 = 1000 ÷ 125 ÷ 8 = 25 × 92 × 4 = 18000 ÷ 125 ÷ 8 = 6600 ÷ 25 ÷ 4 = 18000 ÷ 4 ÷ 25 = 7800 ÷ 25 ÷ 4 = 14000 ÷ 4 ÷ 25 = 87 × 25 × 4 = 5 × 25 × 4 = 15000 ÷ 8 ÷ 125 = 25 × 43 × 4 = 7700 ÷ 25 ÷ 4 = 800 ÷ 25 ÷ 4 = 5000 ÷ 125 ÷ 8 = 46 × 25 × 4 = 125 × 5 × 8 = 7000 ÷ 25 ÷ 4 = 13000 ÷ 8 ÷ 125 = 25 × 98 × 4 =67 × 25 × 4 =125 × 15 × 8 =练习范围：乘法交换律和结合 律 题数： 100姓名:成绩:月 日分 秒6700 ÷ 25 ÷ 4 =125 × 4 × 8 =39 × 25 × 4 =16 × 125 × 8 =125 × 3 × 8 =6000 ÷ 125 ÷ 8 = 1000 ÷ 4 ÷ 25 =125 × 12 × 8 =12 × 125 × 8 = 19000 ÷ 8 ÷ 125 =19000 ÷ 4 ÷ 25 =7000 ÷ 8 ÷ 125 = 25 × 66 × 4 =19 × 25 × 4 =12000 ÷ 125 ÷ 8 = 25 × 78 × 4 =8400 ÷ 25 ÷ 4 =5000 ÷ 8 ÷ 125 = 25 × 58 × 4 =4400 ÷ 25 ÷ 4 =17000 ÷ 4 ÷ 25 = 13000 ÷ 4 ÷ 25 =25 × 73 × 4 =7 × 125 × 8 = 9000 ÷ 125 ÷ 8 =4100 ÷ 25 ÷ 4 =10000 ÷ 25 ÷ 4 = 63 × 25 × 4 =96 × 25 × 4 =125 × 11 × 8 = 18 × 25 × 4 =125 × 8 × 8 =25 × 34 × 4 = 13000 ÷ 125 ÷ 8 =8000 ÷ 125 ÷ 8 =83 × 25 × 4 =29 × 25 × 4 =4300 ÷ 25 ÷ 4 =6000 ÷ 4 ÷ 25 = 8 × 125 × 8 =25 × 75 × 4 =25 × 59 × 4 =17 × 25 × 4 =20000 ÷ 8 ÷ 125 =6400 ÷ 25 ÷ 4 = 74 × 25 × 4 =25 × 49 × 4 =25 × 48 × 4 =3 × 125 × 8 =25 × 93 ×4 =7000 ÷ 4 ÷ 25 = 125 × 13 × 8 = 5 × 125 × 8 =200 ÷ 25 ÷ 4 = 125 × 2 × 8 =。
四年级乘法结合律分配律简便计算
四年级乘法结合律分配律简便计算乘法分配律习题集1一、简便计算(乘法交换律和乘法结合律)。
17×50×2 29×4×5 38×25×4 152×125×8 52×40×2535×25 125×23×8 8×(7×125) 8×(25×15) 35×12×15 4×16×25 32×25 64×125 88×125 24×12548×125 32×25×125 5×38×4×5 25×64×125二、简便计算(乘法分配律)。
1、(10+7)×9 (24+16)×5 (50+125)×8 25×(40+4)25×(8+4) 125×(80+8) 25×(6+40) (43+25)×48×(125—20) 25×(40—8) (100—4)×25 15×(40—6)2、45×17+55×17 13×25+25×27 23×5+77×5 39×13+39×1732×27+73×23 47×53+47×47 63×23+37×23 43×57+43×4338×75+75×53+75×9 25×65+25×12+25×23 34×73+34×46—34×19 102×23—100×23 35×115—15×35 56×22—6×22 108×8—8×8 256×8—8×56 232×7—32×7 415×27—415×7 37×24—24×173、103×25 34×102 32×202 67×101101×77 303×174、99×35 48×98 97×32 34×9963 96×25 98×5、7×99+7 8+8×99 4×99+4 48+9×487×(99+7) (8+8)×99 4×(99+4) (48+9)×486、37×101—37 67×101—67 72×98+72 432×8—8×330+23×8三、综合186×102—186—186 64×25 65×99+35+30 12×98+24 88×101四、综合应用1、两辆汽车同时从杨柳镇和小康镇相对开出，甲车每小时行72千米，乙车每小时行58千米，经过4小时后两车相遇。