五年级小数简便计算题
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50+160÷40(2)120-144÷18+35(3)347+45×2-4160÷52(4)(58+37)÷(64-9×5)(5)95÷(64-45)(6)178-145÷5×6+42(7)812-
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
(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/
4*25+5*25+25(分配率)答案:=25*(4+5+1)=25*10=250
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
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
102×4.57.8×6.9+2.2×6.95.6×0.258×(20-1.25)1)127+352+73+44(2)89+276+135+33(1)25+71+75+29+88(2)243+89+1
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×
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
几道再问:6道
http://www.cpps.tpc.edu.tw/6/MATH-ENG/6-%A4%C0%BC%C6%AD%BC%B0%A3%AAk-%ADp%BA%E2-01.ppt#256,1,分数四则-乘除
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
66666667*66666667=(70000000-3)*(70000000-3)=(70000000-3)^2=70000000^2-2*70000000*3+3^2=4900000000000