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    4.7+2.3=4.5×2=6.9-2.5=7.2×0.8=
    6×3.4=0.62-0.32=1.4×0.5=0.75×100=
    0.02×0.5=3.6÷0.3=6.3÷7=5.6÷100=
    0.75÷0.25=0.125×8=4.8÷0.3=0.96÷2=
    0.56÷28=0.36÷0.4=0.64÷0.8=0.72÷3.6=
    3.6÷24=0.8×1.1=7.2+12.8=46.7-3.8=
    12.8÷4=5.2÷13=12.5÷5=1.64÷41=
    10÷20=24÷15=8.65×10=0.35×0.6=
    3.08×0.01=4.95×1000=6.9×0.1=0.4×0.5=
    2.4÷0.8=10.8÷9=9.6÷0.8=0.108÷2=
    4.95÷0.9=9.65÷0.1=0.325×100=2.5×8=
    0.56÷0.7=0.125×4=3.28×0.1=3.9÷0.13=
    7.2×0.1=0.01×0.1=0.25×0.4=1.6÷0.8=
    1÷2.5=1.25×0.8=3.2÷0.04=0÷1.7=
    0.22×102=9.6÷0.8=5×0.24=4.5-0.05=
    3.9÷0.1316.5÷0.5=5×0.12=24×0.5=
    4.8×0.5=2.8+4.2=0.84÷2.1=5÷0.25=
    7.8÷0.01=5.4÷0.6=3.2÷5=7×0.62=
    0.56÷0.8=7.4-2.8=0.18÷0.2=0.16÷8=
    4.5×0.02=8+7.2=1.2×30=0.012×0.2=
    7.3×0.3=9÷6=3.6÷0.12=7.8÷0.6=
    2÷5=4.5+5=0.3÷0.6=0.96÷0.2=
    10.5×0.4=7.3+0.27=8×0.125=0.54÷0.6=
    0.61+0.39=0.56÷28=10÷20=4.08÷0.4=
    11-9.4=0.8×0.11=0.72+12.8=5.6÷0.01=
    2.3×100=0.75×100=0.108÷2=10.8÷9=
    0.7÷0.8=16-5.07=4.2×0.4=0.72×6=
    12÷0.5=5.2×0.4=12.2÷0.2=5.6÷100=
    0.41+3.7=0.02×0.5=7.2-0.8=1.4×0.5=
    84÷0.21=0.75÷0.25=2.5×16=0.108÷2=
    1.75+32.5=16-5.07=5.2÷13=1.64÷41=
    1.02×0.2=0.26×0.3=8.4×0.02=1.29×6=
    0.8×0.05=12.6÷0.03=8.71÷0.1=21÷0.21=
    0.8×0.13=0.34÷17=8.08÷0.4=0.5×2.2=
    1.24÷4=3.27+0.63=5.02×0.3=0.3×0.5=
    6.4÷4=7.2÷1.8=0.7÷0.35=0.72÷1.44=
    0.48÷0.04=1.25÷2.5=5.5+55=16.8÷8=
    0.54+2.2=3.5-0.05=2÷0.02=0.25×40=
    1.5×0.6=0.32÷0.8=12.25÷0.5=73.5×0.1=
    46.5+52.5=0.45×102=1.25×88=2.64+3.85+1.54=
    8×1.25=5.6÷3.5=4.2÷0.7÷6=0.4×8.6×25=
    0.27÷0.3=2.5×101=0.65×101-0.65=2.6×7÷2.6×7=

    本题信息:数学解答题难度较难 来源:未知
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本试题 “4.7+2.3=4.5×2=6.9-2.5=7.2×0.8=6×3.4=0.62-0.32=1.4×0.5=0.75×100=0.02×0.5=3.6÷0.3=6.3÷7=5.6÷100=0.75÷0.25=0.125×8=4.8÷0.3=0.96÷2=0.56÷28=0.36÷0.4=0.6...” 主要考查您对

小数的加法和减法

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  • 小数的加法和减法
学习目标:
1、学习、探索小数加法和减法的计算方法。 
2、理解小数点对齐的道理,掌握小数加法和减法的计算方法。
方法点拨:
小数加法:小数点对齐,最低位加起,满十向前一位进一。 
小数减法:小数点对齐,最低位减起,不够减借1还10。