五年级小数简便计算题10道
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(1)鱼缸里有若干条金鱼,其中红金鱼占全部的,黑金鱼占全部的.红金鱼和黑金鱼共占全部金鱼的几分之几?(2)修路队用三天的时间正好修了全路的一半,第一天修了全路的,第二天修了全路的,第三天修了全路的几分
3.(23/4-3/4)×(3×6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×5/6–2/9×37.8×5/4+1/48.6÷3/8–3/8÷69.4/7×5/9+3/
0.25×16.2×4(1.25-0.125)×83.6×1023.72×3.5+6.28×3.515.6×13.1-15.6-15.6×2.14.8×7.8+78×0.524.8×100.156.5
50+160÷40(58+370)÷(64-45)32.120-144÷18+3533.347+45×2-4160÷5234(58+37)÷(64-9×5)35.95÷(64-45)36.178-14
1)3643-74+6357-76(2)39×24+39×46+39×30(3)108×35(4)345×98(5)25×64×125×5(6)8500÷25(7)94×73+27×94(8)125×
4.02+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
(1)2.5*32*0.125=(2.5*4)*(8*0.125)=10*1=10(2)3.5-7+6.5=3.5+6.5-7=3(3)1.2×2.5+0.8×2.5=2.5(1.2+0.8)=25(
16.5÷2-6.5÷2=(16.5-6.5)÷2=10÷2=5这种结合律的题很多啊,是在不行就举一反三,换个数字
五年级简便计算训练(a+b)+c=a+(b+c)1.2.73+0.89+1.272.4.37+0.28+1.63+5.72a-b-c=a-(b+c)1.10-0.432-2.5682.9.3-5.26
一、填空题1.计算1.135+3.346+5.557+7.768+9.979=_____.2.计算1.996+19.97+199.8=_____.3.计算9.8+99.8+999.8+9999.8+9
25×32×12527×25-23×258.6×7.3+2.6×8.6+0.868×4×1.255.9-5.9×3.3-2.6×5.925×160÷8÷1252.5×2.4×2.31.55×5.11+
1.2+3.2+0.8=1.2×2.5×4=3.01+1.7+0.99=1×0.66÷6=2.7-2.7÷2.7=0.1-0.047=0.29÷2.9=3.4×0.2=0.57÷19=1.93+2.7
五年级数学简便计算题下面各题怎样算简便就怎样算.6.9+4.8+3.10.456+6.22+3.7815.89+(6.75-5.89)4.02+5.4+0.985.17-1.8-3.213.75-(3
1.(1+1/2)(1+1/3)(1+1/4).(1+1/100)2.(1-1/2)(1-1/3)(1-1/4).(1-1/100)3.8+2-8+24.25*4/25*45.7.26-(5.26-1
120%+89%+11%34%+79%+21%+66%134%-59%-34%2-45%-55%125%×68%×828×25%(45%+25)×436%×1.7+1.7×64%110÷8÷12.5%
72.8÷5.6+14.95.4×12.3+5.4×7.742×101-423.6÷1.5÷233.4+0.12×500.25×3.2×12.56.3÷1.4×23.4×2.6÷0.819.44÷2.
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
1.[(X-1.5)+1]/5=(X-1.5-1)/4X=10.53X+5X=4814X-8X=126*5+2X=4420X-50=5028+6X=8832-22X=1024-3X=310X*(5+1
3.5×200=700,1.5-0.06=1.440.75÷15=0.05,0.4×0.8=0.32,4×0.25=1,0.36+1.54=21.01×99=99.99,420÷35=12,25×12