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小数乘小数竖式计算四年级

0.1 * 20.00.6 * 31.51.1 * 31.21.6 * 30.92.1 * 30.62.6 * 30.33.1 * 30.03.6 * 29.74.1 * 29.44.6 * 29.15.1 * 28.85.6 * 28.56.1 * 28.26.6 * 27.97.1 * 27.67.6 * 27.38.1 * 27.08.6 * 26.79.

1.4+4.5=5.9用跟加减一样的方法.

需要多练习5.3*6.3+2.3= 4.4*7.3+5.3= 4*8.8+1.5= 4.1*0.8-0.2= 9.9*1.4+0.6= 6.4*2.4+3.6= 12.48-4*9.7= 9.8*1.3-0.3= 4.8*9.1-0.5= 2.9+0.6*7.5= 4.2*1.8-0.1= 8.6*6.5+6.4= 5.59-3*4.3= 0.2*5.6+2.5= 3.053-0.1*5.3= 9.4*8.4+5.8= 0.5*4.6+7.1=

2/1*2=1 3/1*3=1 3/2*3=23/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=152/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=58/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8 9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18

0.1 * 20.00.6 * 31.51.1 * 31.21.6 * 30.92.1 * 30.62.6 * 30.33.1 * 30.03.6 * 29.74.1 * 29.44.6 * 29.15.1 * 28.85.6 * 28.56.1 * 28.26.6 * 27.97.1 * 27.67.6 * 27.38.1 * 27.08.6 * 26.79.1 * 26.49.6 * 26.110.1 * 25.810.6 * 25.511.1 * 25.211.6 * 24.912.

1.直接写出得数.(10分)0.8*25= 0*4.23= 0.57+0.43= 2.4*0.2= 0.02*500=2.8*10= 8.29*100= 2.5*0.4= 4.87-1.7= 8.07*1000=2.用竖式计算.(12分)2.97*3.8= 7.05*0.84=

乘法:5.6*2.93.77*1.80.02*965.22*0.39.99*0.024.67*0.95*2.441.666*6.19.432*0.0025.6*6.54.88*2.95.61*4.38.9*2.45.5*559.77*0.021.384*5.18.78*832.6*610.059*0.24.268*1.757*5.79.46*2.8517.8*6.41.5*4.92.5*0.885.555*5.22.22*3.337

3.5*7.55 3.98*0.12 99.999*1.4 5.16*8.99 1.01*3.11 8.8*22.98 36.4*2.1 32.1*6.57 5.78*7.4 37.6*2.6 67.21*6.64 1.1*0 65.37*77.88 3.14*3 3.5*7.55 3.98*0.12 99.999*1.4 5.16*8.99 1.01*3.11 8.8*22.98 36.4*2.1 32.1*6.57 5.78*7.4 37.6*2.6 67.21*6.

一、口算: 2+2.8= 3.8-2.9= 0.35+0.5= 0.35+0.63= 3.5÷70= 3.1+3= 3.8+0.38= 7.5÷25= 3.8+1= 0.95-0.05= 4.5+7.8= 3.1+0.3= 3+0.3= 6.3÷9= 4.5-0.4= 9.5-5= 1.1*9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 二、列竖式

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