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2022年五年级上册数学练习题 .pdf

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1、五年级数学练习题（1-3 单元）一选择题（共4 小题）1小华身高 130 厘米，写成小数是（）A0.13 米 B1.30 米C1.03 米2下面算式中的得数大于40000的是（）A39580 B 60160 C 57892345.53.8（）（得数保留一位小数）A12.0 B 11.9 C 11.9749.7442.4 的结果是（）A4.06 B 4.6 C 0.406二填空题（共22小题）5根据 18.39.8=8.5，可以写出两道算式18.3=，9.8=6 在一道减法算式里，被减数是减数的 6倍，已知差是 15，则减数是 3（判断对错）74 个 250 米的长度是 1 千米（判断对错）83

2、00g1kg（判断对错）9计算6 吨 200 千克=千克1 米3 分米=分米7 千米 5000 米=米8 毫米+2 毫米=厘米82 厘米 52 厘米=分米3 厘米+2 毫米=毫米1 吨700 千克=千克6 吨2000 千克=千克5200 千克 3200 千克=吨200 千克+1800 千克=吨10把下面各数改写成以“米“为单位的数8 分米 7 厘米6 厘米 5 毫米=11一个数除以 25%，就等于这个数缩小4 倍（判断对错）12450 比 105 多，比 680 少13比 687 多 123 的数是 810（判断对错）14是的 3 倍，有个第一行：第二行：15609 个 18 是，730 的

3、3 倍是16下面的题计算是否正确，对的打，错的打5424=45263784=3181535=43617把乘得的积填在下面的空格里乘数134307乘数64积180.357 的积是位小数190.75 表示有 5 个 0.7 相加2026.44=+21在计算小数乘法时，积的小数点要与因数的小数点对齐（判断对错）22想一想（1）早晨当你面对着太阳，你的后面是面，你的右面是面，你的左面是面（2）晚上当你面对着北极星，你的后面是面，你的右面是面，你的左面是面23用（6，6）表示位置，两个6 表示的意义是一样的（判断对错）24蜗牛要和蚂蚁一起去甲壳虫家作客（1）蜗牛先向走，再向走，就到达甲壳虫家（2）蚂蚁先

4、向走，再向走，就到达甲壳虫家文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q

5、5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10

6、X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码

7、:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4

8、C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7

9、 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B

10、3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6255.046 的商1A等于B小于C 大于26按四舍五入法求出商的近似值，填入下表保留一位小数保留两位小数保留三位小数102866.50.2

11、7三解答题（共14小题）27小粗心，太大意，计算减法看错题，被减数个位的8 抄成 3，减数十位的 2抄成 5，这样算出的差是305你知道正确得数是几吗？28直接写得数75+35=28+38=142+58=364+636=653210=52333=200101=486186=34599=8228=420+300=300+600=29李老师要买 35 本故事书，大约需要多少钱？（得数保留整数）30 竖式计算 0.380.25 1500.12 0.871.9（得数保留二位小数）8.50.39（验算）文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E

12、4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z

13、7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10

14、B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9

15、I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8

16、Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A1

17、0X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编

18、码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X631直接写出得数0.825=04.23=0.57+0.43=2.40.2=0.02500=2.810=8.29100=2.50.4=4.871.7=8.071000=32小凯做了几道题，忘记点了小数点，请你帮他点上小数点362.4=8 6 4 130.2 5=3 2 5

19、 14.43.98=5 7 3 1 2 33 1 千克芝麻可以出芝麻油0.45 千克，1000 千克芝麻可以出芝麻油多少千克？34直接写出得数6.510=0.56100=3.78100=3.215100=0.810=4.08100=35王老师用 43.20 元买了 10 支钢笔，每只钢笔多少元？买100 支这样的钢笔应付多少元？36甲数是 3.8，乙数是 38，在它们的末尾都添上两个零，这时乙数是甲数的多少倍？37用竖式计算31.2 2.70.36 88.41.738竖式计算：1824=43.6826=25.30.88=验算：0.15753.15=0.6121.8=16.7870.28=（保留

20、一位小数）39用 300 千克黄豆可榨油 39 千克，平均 1 千克黄豆可榨油多少千克？40直接写结果3.61.20.720.92.6134.80.44.440.7867.20.410.255.511380.1825.61.4文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS

21、10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7

22、U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 Z

23、L8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1

24、A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文

25、档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM

26、7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F

27、2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6五年级数学练习题参考答案与试题解析一选择题（共4 小题）1小华身高 130 厘米，写成小数是（）A0.13 米 B1.30 米C1.03 米【分析】把厘米化成米，用 130 除以进率 100 即可【解答】解：130 厘米=1.30米；故选：B【点评】解决本题关键是要熟记单位间的进率，知道如果是高级单位的名数转化成低级单位的名数，就乘单位间的进率；反之，就除以进率来解决2下面算式中的得数大于40000的是（）A39580 B 60160 C 57892【分析】根据整数乘法的计算方法，分别求出各个选项中算式的结果，然后再比较解答【解答】解：

28、A、39580=31600；B、60160=36060；C、57892=53176；只有 5317640000故选：C【点评】本题关键是求出各个算式的结果，然后再按照整数大小比较的方法进行解答345.53.8（）（得数保留一位小数）A12.0 B 11.9 C 11.97【分析】先根据小数除法的计算方法，求出商计算到小数点后面第二位，再根据四舍五入法保留一位小数【解答】解：45.53.812.0文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7

29、HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3

30、Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8

31、 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5

32、P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X

33、6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:

34、CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C

35、3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X611.9712.0故选：A【点评】本题考查了小数的除法，以及根据“四舍五入”法取近似数的方法49.7442.4 的结果是（）A4.06 B 4.6 C 0.406【分析】根据除数是小数的除法的计算方法，先求出9.7442.4 的商，再选择【解答】解：9.7442.4=4.06故选：A【点评】解决此题也可以直接根据商不变的性质，把 9.7442.4 的被除数和除数同时扩

36、大 10 倍改写成 97.4424 计算二填空题（共22小题）5 根据 18.39.8=8.5，可以写出两道算式18.3=9.8+8.5，9.8=18.38.5【分析】根据被减数减数=差，被减数=减数+差，减数=被减数差解答即可【解答】解：根据被减数、减数、差的关系，可得18.3=9.8+8.5，9.8=18.38.5故答案为：9.8+8.5，18.38.5【点评】此题主要考查了被减数、减数、差的关系：被减数减数=差，被减数=减数+差，减数=被减数差6在一道减法算式里，被减数是减数的6 倍，已知差是15，则减数是 3（判断对错）文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8

37、Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A1

38、0X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编

39、码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E

40、4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z

41、7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10

42、B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9

43、I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6【分析】根据题意，可假设减数是3，因为被减数是减数的6 倍，所以被减数应是 36=18，然后再用被减数 18 减去减数 3 等于 15，因此题干陈述正确【解答】解：假设减数是 3，被减数：36=18差是：183=15故判：【点评】解答

44、此题的关键是根据被减数与减数的关系确定被减数，然后再利用被减数减数=差进行对照判断即可74 个 250 米的长度是 1 千米（判断对错）【分析】根据整数乘法的意义，4 个 250 米就是 2504，计算出结果再除以进率1000 化成千米即可【解答】解：2504=1000（米）1000 米=1千米故答案为：【点评】本题主要是考查长度的单位换算、整数乘法的应用记住米与千米之间的进率是 10008300g1kg（判断对错）【分析】把 300 克除以进率 1000 化成 0.3 千克或把 1 千克乘进率 1000 化成 1000克再把二者进行比较【解答】解：因为 300g=0.3kg所以 300g

45、1kg故答案为：【点评】不同单位的名数的大小比较通常是先化成相同的单位名数，再根据整数或小数或分数的大小比较方法进行比较化成什么单位要灵活掌握9计算6 吨 200 千克=6200千克1 米3 分米=7分米文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8

46、ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P

47、1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6

48、文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:C

49、M7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3

50、F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 HS10B3Y7U9I8 ZL8Q5P1A10X6文档编码:CM7E4C3F2Z7 H

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