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小数乘法简便计算题100道

.5*0.07 = 6.3÷0.09 = 2.5*3.6 = 19.8÷3.3 = 5÷0.25 = 0.76÷0.4 = 2.36*0.22 = 2.8*4.58 = 3.57÷4.2 = 82.8÷ 36 = 45*2.46 = 3.6÷0.24 = 382.5÷45 = 6.4*5.48 = 13.42*4.73 = 9.65*8.12 = 7.23*1.2 = 6.3*12 = 2.14*8.3 = 4.9*1.12 = 21.98*2.31 = 0.24*28.

下面各题怎样算简便就怎样算.6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89)4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8

a+b)+ c = a +(b+c)1. 2.73 + 0.89 + 1.27 2. 4.37 + 0.28 + 1.63 + 5.72 a-b-c = a -(b+c)1. 10 - 0.432 - 2.568 2. 9.3 - 5.26 - 2.743. 13.4-(3.4+5.2) 4. 14.9-(5.2+4.9)5. 18.32 - 5.47 - 4.32 6. 17.29 - 5.28 - 6.29 (a * b)*c = a *(b * c)1. 25 * 6.8 * 0.04 2. 0.25

2.8*0.4= 1.12 14-7.4=6.6,1.92÷0.04=48,0.32*500=160,0.65+4.35= 5 10-5.4=4.6,4÷20=0.2,3.5*200=700,1.5-0.06=1.44 0.75÷15=0.05,0.4*0.8=0.32,4*0.25=1,0.36+1.54=2 1.01*99=99.99,4

利用乘法分配率100.1*36=(100+0.1)*36 3.8*5.2+3.8*4.8=(5.2+4.8)*3.856.5*9.9+5.65 =56.5*9.9+56.5*0.1=56.5*(9.9+0.1) 利用乘法结合律和交换率 1.25*3.2*0.25=(1.25*0.8)*(0.25*4) 这是我在教学中孩子们经常会出错的典型简算题,而且有一定难度,当然关于小数加减法也有一些简算,思路与整数的运算一样,仅供参考!

100道小数乘法计算题 5.6*2.9 3.77*1.8 0.02*96 5.22*0.3 9.99*0.02 4.67*0.9 5.54*2.44 1.666*6.1 9.432*0.002 5.6*6.5 4.88*2.9 5.61*2.1 8.9*2.4 9.77*0.02 1.384*5.1 8.78*83 2.6*61 0.059*0.2 4.268*1.7 57*5.7 9.46*2.85 17.8*6.4 1.5*4.9 2.5*

(1)2.64*1.7-2.64*0.7=2.64*(1.7-0.7)=2.64*1=2.64 (2)31.5*1.07-3.15*0.7=3.15*10.7-3.15*0.7=3.15*(10.7-0.7)=3.15*10=31.5 (3)2.7*5.7-2.7+5.3*2.7=2.7*(5.7-1+5.3)=2.7*10=27 (4)0.625÷0.125*0.8=(0.625*0.8)*8÷(0.128*8)=0.5*8÷1=4 (5)18.6*6

1.2+9=10.25.43-3.06=2.373+1.2=4.2 0.12+5=5.121.2+1.8+1.4=4.4 6.2+16+3.8=2614-0.6=13.4 20.3-8=12.3 50-1.5+4= 53.5175-0.56=174.44 2.08+11=13.089 0.4+20= 20.42.5+67+7.5=77 4.5-3=1.5 25-0.38=1.62 5.4+9.6=15 5.6-4=1.6 1.45+55=

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