250道简便计算题及答案
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![250道简便计算题及答案](/uploads/image/f/252448-16-8.jpg?t=250%E9%81%93%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E9%A2%98%E5%8F%8A%E7%AD%94%E6%A1%88)
1.45+15×6=1352.250÷5×8=4003.6×5÷2×4=604.30×3+8=985.400÷4+20×5=2006.10+12÷3+20=347.(80÷20+80)÷4=218.7
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
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1)86+49+114=2)240+(39-40)=3)255+(352+145+48)=4)(345+377)+(55+23)=5)9+(80+191)=6)(268+314+132)+86=7)5
1000+999-998-997+996+995-994-993……+108+107-106-105+104+103-102-101 1000+999-998-997+996+995-994-993
.2.73+0.89+1.272.4.37+0.28+1.63+5.72a-b-c=a-(b+c)1.10-0.432-2.5682.9.3-5.26-2.743.13.4-(3.4+5.2)4.14
125×(17×8)×4375×480+6250×48=125×8×4×17=480×(375+625)=1000×68=480000=6800025×16×12513×99=25×2×8×125=1
(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(
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14.59+x-25.31=0x=10.72x-48.32+78.51=80x=49.81820-16x=45.5×8x=28.5(x-6)×7=2xx=8.43x+x=18X=4.50.8x+2.2
1.(25%-695%-12%)*362.3/4*3/5+3/4*2/53.(1-1/4+8/9)/7/942/3+1/6/3/24+2/2151*8/15*3/5610-3/4/9/10-1/67[
1.25×14×4=25×4×14=100×14=14002.125×19×8=125×8×19=1000×19=190003.20×8×5=20×5×8=100×8=8004.6×26+4×26=(
有图片,复制不上,邮箱9.(2010.莱芜)现有两个电路元件定值电阻R1和热敏电阻R2(电阻随温度改变而改变,且对温度很敏感),它们各自的电流与两端电压的关系如图甲所示.将这两个电路元件接入图乙所示的
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
1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×
1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4.3/7×49/9-4/35.8/9×15/36+1/276.12×
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ghytuyhg79/7518×(1/3+5/9-1/6)11/27×53/42×54/113/8×79/75×24×2523/11×(22/4×1/3-77/46)47×12617/25×5/