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问题标题:
四则运算练习题答案
问题描述:

四则运算练习题答案

李岳霖回答:
  题还够吧!   9405-2940÷28×21   920-1680÷40÷7   690+47×52-398   148+3328÷64-75   360×24÷32+730   2100-94+48×54   51+(2304-2042)×23   4215+(4361-716)÷81   (247+18)×27÷25   36-720÷(360÷18)   1080÷(63-54)×80   (528+912)×5-6178   8528÷41×38-904   264+318-8280÷69   (174+209)×26-9000   814-(278+322)÷15   1406+735×9÷45   3168-7828÷38+504   796-5040÷(630÷7)   285+(3000-372)÷36   1+5/6-19/12   3x(-9)+7x(-9   (-54)x1/6x(-1/3)   1.18.1+(3-0.299÷0.23)×1   2.(6.8-6.8×0.55)÷8.5   3.0.12×4.8÷0.12×4.8   4.(3.2×1.5+2.5)÷1.6(2)3.2×(1.5+2.5)÷1.6   5.6-1.6÷4=5.38+7.85-5.37=   6.7.2÷0.8-1.2×5=6-1.19×3-0.43=   7.6.5×(4.8-1.2×4)=0.68×1.9+0.32×1.9   8.10.15-10.75×0.4-5.7   9.5.8×(3.87-0.13)+4.2×3.74   10.32.52-(6+9.728÷3.2)×2.5   11.[(7.1-5.6)×0.9-1.15]÷2.5   12.5.4÷[2.6×(3.7-2.9)+0.62]   13.12×6÷(12-7.2)-6   14.12×6÷7.2-6   15.33.02-(148.4-90.85)÷2.5   7×(5/21+9/714)   50.32.52-(6+9.728÷3.2)×2.50.45×2.5=0.8×1.25=0.3×3.6=0.3×0.3=10×0.07=0.3×1.4=0.05×7=0.92×0.4=0.2×0.26=0.14×4=0.02×0.1=1.2×0.3=0.2×0.4=8.2+1.8=100-35.22=2.3×4=   2.5×0.4=2.4×5=0.22×4=3.25×0=   0.9-0.52=3.99×1=0×3.52=12.5×8=   8÷10=10-1.8-7.2=0.43+3.57=2.5×4×12=   0.9×0.8=7.5x-3x=a+3a+7a==1.05×100=1÷0.5=0.96÷3=1.47÷0.7=5.4÷6=   0.16.5×10=0.56×100=3.78×100=4÷0.8=   3.215×100=0.8×10=4.08×100=1.1×0.2=   0.6×0.8=3×0.9=2.5×0.4=3.6×0.4=   12.5×8=50×0.04=80×0.3=1.1×9=   0.16×5=1.78+2.2=9.6÷0.6=1.2×0.5-0.4=0.7÷0.01=2.5×0.4=12-3.9=1.25×8÷1.25=6.6÷0.66=5.37×0+4.63=3.9+2.03=4.2÷3.5=   1.6+2.4×0.3=2.14-0.9=27+456+73=0.3×0.3=   7.2+2.8=0.9÷0.01=12÷0.3=2.87÷0.7=   13÷4=0.96÷0.3=1.5×0.4=7÷0.25=2.5×0.7×0.8=8-2.5=16÷1.6=5.6×1.01=8×(2.5+0.25)=0.36+0.64=64.32÷16=4.2÷0.1=   72.8÷0.8=8.4÷4.2=13.8+9.9=2.4×2.5=   0.05×0.8=2.56-0.37=1.25×0.8×0.5=12×2.5=1.23×3=3.2÷1.6=3.5+3.5×3=19.6÷2=8.8÷2.2=0.75×4=(1.5+0.25)×4=0.5×0.8=   8.4×0.2=1.6×0.2=7.2×0.3=2.8×0.3=0.9÷0.15=1.8×0.4=5.5÷0.55=0.08×100=   2.2÷0.11=5.46+4.54=12.5×0.8=0.35×0.3=   1.4×5=2.8×4=19.6÷4=22.5×4=   2、用竖式计算   0.396÷1.2=0.756÷0.36=15.6×13=   0.18×15=0.025×14=3.06×36=   0.04×0.12=3.84×2.6≈5.76×3=   (保留一位小数)   7.15×2290.75÷3.33.68×0.25   16.9÷0.131.55÷3.93.7×0.016   13.76×0.8=5.2×0.68.4×1.3   6.4×0.54.48×0.45.25×5   35.4×4.20.042×0.540.76×0.32   1.3/7×49/9-4/3   2.8/9×15/36+1/27   3.12×5/6–2/9×3   4.8×5/4+1/4   5.6÷3/8–3/8÷6   6.4/7×5/9+3/7×5/9   7.5/2-(3/2+4/5)   8.7/8+(1/8+1/9)   9.9×5/6+5/6   10.3/4×8/9-1/3   11.7×5/49+3/14   12.6×(1/2+2/3)   13.8×4/5+8×11/5   14.31×5/6–5/6   15.9/7-(2/7–10/21)   16.5/9
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