练习册

  • 练习册
  • 试题
    精英家教网 > 小学数学 > 题目详情

    4.25÷0.5=________÷5．

    42.5
    分析：4.25÷0.5根据商不变规律，把被除数和除数同时扩大10倍，把除数变成整数再计算．
    解答：4.25÷0.5=42.5÷5=8.5；
    故答案为：42.5．
    点评：本题考查了商不变规律：把除数和被除数同时扩大相同的倍数（0除外），商不变．
    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：小学数学 来源： 题型：

    递等式计算：（能简便计算的用简便方法计算）
    （1）3.6×1.25+0.32÷0.4
    （2）0.45×78.2+20.8×0.45+0.45
    （3）14.5+27.3+12.7+45.5
    （4）（0.25+0.125）÷（0.75×0.4）
    （5）6500÷0.125÷0.8
    （6）[（3.8-2.5）×0.4-0.1]÷0.04．

    查看答案和解析>>

    科目：小学数学 来源： 题型：

    3.5×0.4= 2.5×0.4= 2.3×0.2= 2.1÷0.3=
    7.1×0.4= 4.5÷0.15= 1-0.07= 0.42÷0.7=
    12.4÷4= 2.5+1.5=  5.9×0.2= 0.48÷0.8=
    0.25×1.3×4= 20÷0.01= 9÷0.01= 5.5÷1.1=
    4.79+15.81= 0.3÷0.03= 0.2×0.1= 3.6+6.4=
    0.56÷0.28= 1.2×0.3= 6.7-5.6= 7.25÷0.5=
    4.2÷0.21= 4.3×0= 0.15÷0.5= 3.5×4=
    5.32-5.3= 1.25×3.4×8= 9.6÷3.2= 3.6+2.4=
    4.3-2.7+5.7= 7.2-5.6= 1.8÷0.9= 8.2×0.5=
    5.6÷0.4= 8.5÷5= 5.6×0.5= 9.8÷0.2=
    3.56×0.2= 3.4+1.5+4.6= 3.4×0.04= 6.12+3.48=
    6÷0.12= 7.6÷4= 3.4×0.5= 5.2-3.2-1.8=
    6-3.8= 7.5÷3= 3.5+5.4= 3×2.5=
    3.5+6.5= 7-6.23= 8÷0.4= 0.25×2.5=
    7.5÷0.5= 0.89-0.48= 3.5×0.8= 5.9-（3.2+0.9）=

    查看答案和解析>>

    科目：小学数学 来源： 题型：

    180÷60= 12×25= 0÷90=
    4×5÷4×5= 0.25×4+4= 131+218+269+182=
    25×6×4= 420÷35= 36×5×4=
    120÷5÷3= 198-75-25= 120-20÷5=
    59亿-58亿= （1.3+3.5）÷0.6= 75÷2.5=
    0.45÷1.25÷8= 2.5×7.6×4= 97.6÷0.02=
    8.8-（0.25+0.4）= 0.25+87+0.75= 0.8-0.35×2=
    0.1÷0.01×0.1= 9.9+9.9×99= 2.7×3.6+6.4×2.7=
    720÷8÷9= 2.9+5.7+2.1= 2-0.16-0.64=
    16.7+84.5-16.7= 6.8-（3.8+2.9）= 9×1.3+9×6.7=
    5.5-5.25+5.2= 0.8×25-10= 42.8×25×4=
    7.2+2.8= 0.9÷0.01= 3.5+7.6=
    3×0.2×0.5= 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= 72.8÷0.8=
    8.4×0.2+1.6×0.2= 8.4÷4.2= 0.05×0.8=
    2.56-0.37= 1.23×3= 25×0.8×0.5=
    12×2.5= 3.2÷1.6= 3.5+3.5×3=
    19.6÷2= 8.8÷2.2= 3.9+2.03=
    7.2×0.3+2.8×0.3= 13.8+9.9= 2.4×2.5=
    0.75×4= （1.5+0.25）×4= 4.2÷0.1=
    4.2÷3.5= 2.14-0.9= 27+456+73=
    12÷0.3= 2.87÷0.7= 13÷4=
    24÷4+56÷4= 2.1×0.3÷2.1= 2.3-0÷8.1=
    1.37-1.37÷1.37= 4.4÷（5×0.2）= 7×1.3=
    0.96÷0.06= 0.36×0.3= 0.35÷0.7=
    13.65÷13= 4×0.8×0.25×1.25= 13+0.7÷0.7=
    7.05×23.7+7.05×76.3= 0.125×3.2×2.5= （12+23.1÷0.75）×0.4-5.12=
    728+199= 637-201= 16×25=
    1.6×[（12-7.2）÷（0.84÷2.1）]=

    查看答案和解析>>

    科目：小学数学 来源： 题型：阅读理解

    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÷0.13 16.5÷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=

    查看答案和解析>>

    科目：小学数学 来源： 题型：解答题

    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=0.64÷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=

    查看答案和解析>>

    同步练习册答案