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1、北师大版三年级下册数学面积应用题专项练习一、填空。 1. 测量或计算面积时要用( )单位。测量或计算长度要用( )单位 2. 常用的面积单位有( )、( )和( ) 3. 边长为1厘米的正方形的面积是( )，边长( )分米的正方形的面积是1平方米。 4. 相邻的两个长度单位之间的进率是( )，每相邻两个面积单位间的进率是( )。 5. 一个长方形长是5厘米，宽是3厘米，面积是( )，周长是( )。 6. 边长为4分米的正方形的面积是( )，周长是( )。 7. 长120厘米，宽30厘米的长方形的面积是( )平方厘米，合( )平方分米。 8. 125平方米,( )平方分米 9. 600厘米,(
2、)分米,( )米 10. 5平方米,( )平方分米,( )平方厘米 二、选择。 1. 长方形的面积计算公式是( )。 A.长,，宽 B.(长+宽), C.长宽 2. 正方形的边长是,米，它的面积是( ) A.16米 B.,平方米 C.16平方米 3. 面积相等的两个长方形，它们的周长是( ) A.不相等 B.相等 C.不一定相等 4.一个长方形的长增加,厘米，宽减少,厘米，它的周长和原来长方形的周urban traffic structure in the urban public transport system, rail traffic with a fast, large capaci
3、ty, low pollution and high efficiency, become an indispensable part of urban traffic structure, is the contradiction between supply and demand of the growing metropolis, cities, effective means to meet the needs of urban traffic. The following table is a rail transport and other modes of urban passe
4、nger transport capacity, transportation speed and resource consumption, and so on. Comparison of urban passenger traffic characteristics table 5.1-2 traffic volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-15 3,000 short car 20-50 10-20 wide bus 6,000-9
5、,000 1-2 40-60 0.25-0.5 from the Metro light rail of 10,000-30,000 in long-distance line 3 More than 0,000 40-60 do not occupy an area both in terms of transport over long distances, transport efficiency, or from the level of resource consumption and environmental pollution, rail transport is undoub
6、tedly an effective means to solve the problem of traffic congestion in cities. Especially in urban population strength enormous traffic demand on the route to ease traffic pressure, rail transportation has incomparable advantages. Washington, DC, area of 177km2, and a population of 600,000, is a Uni
7、ted States political center. For the Washington Metro system United States second-busiest subway, second only to the New York subway, opened in 1976. Current rail sizes for 5, station 86, total 171.6km, net annual passenger volume reached 223 million people. According to statistics, from 2000 to 200
8、9 vehicle trip down 12.7%, bus travel has increased by 12%. Objectives of the Washington Metro system boils down to the following three points: by driving onto the tracks at the station transfer mode in order to alleviate traffic congestion; For those who will not or cannot drive the person with a b
9、etter option than conventional public transit; Block highway 长( ) A.相等 B.不相等 C.不一定相等 5.,厘米用米作单位是( ) A.3.5米 B.0.35米 C.0.035米 三、判断。 1. 面积相等的两个长方形，周长也相等( ) 2. 平方厘米和平方米之间的进率是10000( ) 3. 正方形的边长扩大,倍，周长也扩大,倍( ) 4. 正方形的边长扩大,倍，面积也扩大,倍( ) 5. ,平方米和,米一样大( ) 五、解决问题。 2. 一个小正方形的边长是3厘米，一个大正方形的边长是小正方形边长的4倍，大正方形的面积是多
10、少, 3.一根,米的绳子围成一个正方形，这个正方形的面积是多少, 4. 一个长方形的周长是120分米，长是36分米，求长方形的面积, 5. 有一块长方形菜地，它较长的一条边靠着墙，长,米，用篱笆将这个菜地围起来要40米。这个菜地的面积是多少, -20 wide bus 6,000-50 10-short car 2015 3,000 -2 traffic volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-stics table 5.1ransport c
11、apacity, transportation speed and resource consumption, and so on. Comparison of urban passenger traffic characteringer t, effective means to meet the needs of urban traffic. The following table is a rail transport and other modes of urban passedispensable part of urban traffic structure, is the con
12、tradiction between supply and demand of the growing metropolis, citiesh efficiency, become an inurban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and higsit; Block highwaytran alleviate traffic congestion; For those who will not or
13、cannot drive the person with a better option than conventional public on Metro system boils down to the following three points: by driving onto the tracks at the station transfer mode in order toshingtle. According to statistics, from 2000 to 2009 vehicle trip down 12.7%, bus travel has increased by
14、 12%. Objectives of the Waay, opened in 1976. Current rail sizes for 5, station 86, total 171.6km, net annual passenger volume reached 223 million peopbusiest subway, second only to the New York subw-ited States political center. For the Washington Metro system United States secondessure, rail trans
15、portation has incomparable advantages. Washington, DC, area of 177km2, and a population of 600,000, is a Unfic prem of traffic congestion in cities. Especially in urban population strength enormous traffic demand on the route to ease trafevel of resource consumption and environmental pollution, rail
16、 transport is undoubtedly an effective means to solve the probl60 do not occupy an area both in terms of transport over long distances, transport efficiency, or from the l-distance line 3 More than 0,000 40-30,000 in long-0.5 from the Metro light rail of 10,000-60 0.25-2 40-9,000 12 15公顷,( )平方米 3000
17、厘米2,( )分米2 12千米2,( )公顷 8dm2,( )m2。 6米2,( )分米2 900分米2,( )米2 5米 2,( )厘米2 300厘米2,( )分米2 1800厘米2,( )分米2 40分米2,( )厘米2 (4)(8分)在?里填上,、,或,。 4公顷?4900平方米 3平方千米?3000公顷 60000平方厘米?6平方米 15平方米?150平方厘米 (5)(6分)用两个边长为5厘米的正方形，拼成一个长方形，这个长方形的面积是( )，周长是( ) (6)(7分)在括号里填上合适的单位名称。 一枚邮票大约6( ) 教室占地面积为50( )。 一座教学楼高20( ) 运动场的周长
18、是400( ) 一块黑板的面积约是6( ) 游泳池的深度为120( ) 我国国土面积约为960万( ) 四、解决问题。(40分) (1)一块长方形菜地，长是16米，宽是5米。 ?这块菜地占地面积是多少平方米, ?如果四周用篱笆围起来 篱笆有多少米? (2)一张方桌，桌面的边长是90厘米，要配上一块与桌面同样大的玻璃，这块玻璃的面积是多少平方厘米,合多少平方分米, -tro light rail of 10,0000.5 from the Me-60 0.25-2 40-9,000 1-20 wide bus 6,000-50 10-15 3,000 short car 20-2 traffic
19、 volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-on. Comparison of urban passenger traffic characteristics table 5.1so is a rail transport and other modes of urban passenger transport capacity, transportation speed and resource consumption, and supply
20、and demand of the growing metropolis, cities, effective means to meet the needs of urban traffic. The following table h efficiency, become an indispensable part of urban traffic structure, is the contradiction betweenurban traffic structure in the urban public transport system, rail traffic with a f
21、ast, large capacity, low pollution and higperson with a better option than conventional public transit; Block highwaythe tracks at the station transfer mode in order to alleviate traffic congestion; For those who will not or cannot drive the g ontous travel has increased by 12%. Objectives of the Wa
22、shington Metro system boils down to the following three points: by drivinnet annual passenger volume reached 223 million people. According to statistics, from 2000 to 2009 vehicle trip down 12.7%, bbusiest subway, second only to the New York subway, opened in 1976. Current rail sizes for 5, station
23、86, total 171.6km, -es secondarea of 177km2, and a population of 600,000, is a United States political center. For the Washington Metro system United Stat, DC, th enormous traffic demand on the route to ease traffic pressure, rail transportation has incomparable advantages. Washingtonis undoubtedly
24、an effective means to solve the problem of traffic congestion in cities. Especially in urban population strengconsumption and environmental pollution, rail transport 60 do not occupy an area both in terms of transport over long distances, transport efficiency, or from the level of resource -distance
25、 line 3 More than 0,000 40-30,000 in long3 (3)用一根铁丝正好围成长是6厘米，宽是4厘米的长方形，如果用这根铁丝围成正方形，正方形的面积是多少, (4)一块正方形菜地的周长是24米，它的的面积是多少平方米, (5)一个长方形的面积是40米2，长是8米，它的周长是多少, 一、填一填: 1、什么是面积: 2、我们学过的长度单位有 ( ) 常用的面积单位有:( ) 3、填上合适的单位名称: 小华家的住房面积是98( ) 一张邮票的面积大约是6( ) 我国的海洋面积大约300万( ) 一枚纽扣面的大小约为1( ) 数学课本长26( ) 一张办公桌的面积是34
26、( ) 一棵大树高10( ) 一个果园占地3( ) 一块地砖的面积约40 ( ) 一个铅笔盒盖的面积约140( ) 2 40-9,000 1-20 wide bus 6,000-50 10-short car 2015 3,000 -2 traffic volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-stics table 5.1ransport capacity, transportation speed and resource consumpti
27、on, and so on. Comparison of urban passenger traffic characteringer t, effective means to meet the needs of urban traffic. The following table is a rail transport and other modes of urban passedispensable part of urban traffic structure, is the contradiction between supply and demand of the growing
28、metropolis, citiesh efficiency, become an inurban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and higsit; Block highwaytran alleviate traffic congestion; For those who will not or cannot drive the person with a better option than co
29、nventional public on Metro system boils down to the following three points: by driving onto the tracks at the station transfer mode in order toshingtle. According to statistics, from 2000 to 2009 vehicle trip down 12.7%, bus travel has increased by 12%. Objectives of the Waay, opened in 1976. Curren
30、t rail sizes for 5, station 86, total 171.6km, net annual passenger volume reached 223 million peopbusiest subway, second only to the New York subw-ited States political center. For the Washington Metro system United States secondessure, rail transportation has incomparable advantages. Washington, D
31、C, area of 177km2, and a population of 600,000, is a Unfic prem of traffic congestion in cities. Especially in urban population strength enormous traffic demand on the route to ease trafevel of resource consumption and environmental pollution, rail transport is undoubtedly an effective means to solv
32、e the probl60 do not occupy an area both in terms of transport over long distances, transport efficiency, or from the l-distance line 3 More than 0,000 40-30,000 in long-0.5 from the Metro light rail of 10,000-60 0.25-4 一张5寸照片的大小约108 ( ) 袋鼠一次大约能跳4( ) 二、 选择: ?面积单位与长度单位比较( ) a.面积单位大 b.长度单位大 c.无法比较 ?一个
33、长为4米，宽为20分米的长方形面积是( ) a.80平方分米 b.800平方分米 c.80平方米 d.8平方米 ?小明用1平方分米的正方形纸板量课桌面的面积,沿着长要摆6个,沿着宽要摆4个,课桌面的面积是( )平方分米 a.10 b.20 c.24 d.48 ?用一根长20m的铁丝围成一个最大的正方形，这个正方形的面积是( ) a.25米 b.20平方米 c.25平方米 d.100平方米 ?下图中，长方形被分成了甲乙两部分，这两部分( ) a. 周长、面积都相等 b. 周长不相等、面积相等 c. 周长相等、面积不相等 d. 周长、面积都不相等 ?5个边长4厘米的正方形面积是( ) a.20平方
34、厘米 b.80平方厘米 c. 100平方厘米 三、判断 1.边长是1分米的正方形，面积是1平方分米，又是10平方厘米。 ( ) 2.要知道课桌面的大小，就要计算它的面积。 ( ) 3.400米 =4分米 ( ) -2 40-9,000 1-20 wide bus 6,000-50 10-15 3,000 short car 20-2 traffic volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-on. Comparison of urban pass
35、enger traffic characteristics table 5.1so is a rail transport and other modes of urban passenger transport capacity, transportation speed and resource consumption, and supply and demand of the growing metropolis, cities, effective means to meet the needs of urban traffic. The following table h effic
36、iency, become an indispensable part of urban traffic structure, is the contradiction betweenurban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and higperson with a better option than conventional public transit; Block highwaythe trac
37、ks at the station transfer mode in order to alleviate traffic congestion; For those who will not or cannot drive the g ontous travel has increased by 12%. Objectives of the Washington Metro system boils down to the following three points: by drivinnet annual passenger volume reached 223 million peop
38、le. According to statistics, from 2000 to 2009 vehicle trip down 12.7%, bbusiest subway, second only to the New York subway, opened in 1976. Current rail sizes for 5, station 86, total 171.6km, -es secondarea of 177km2, and a population of 600,000, is a United States political center. For the Washin
39、gton Metro system United Stat, DC, th enormous traffic demand on the route to ease traffic pressure, rail transportation has incomparable advantages. Washingtonis undoubtedly an effective means to solve the problem of traffic congestion in cities. Especially in urban population strengconsumption and
40、 environmental pollution, rail transport 60 do not occupy an area both in terms of transport over long distances, transport efficiency, or from the level of resource -distance line 3 More than 0,000 40-30,000 in long-tro light rail of 10,0000.5 from the Me-60 0.255 4.边长为4厘米的正方形，它的周长和面积相等。 ( ) 5.一个长方
41、形和一个正方形面积相等，周长也一定相等。 ( ) 6.一个教室的面积是48米。 ( ) 五、解决问题 2、.一块边长为800米的正方形实验田，如果每公顷收稻谷约8吨。这块实验田可收稻谷约多少吨, 3、莉莉家的客厅宽4m，长比宽的2倍少1m. ?莉莉家的客厅的面积是多少, ?这种瓷砖的边长是2dm，如果莉莉家用这种瓷砖铺客厅的话，至少需要多少块, 4、一块长方形地与一块正方形地的周长相等，长方形地长30m，宽是10m，正方形地的面积是多少平方米, distance line 3 More than 0,000 40-30,000 in long-0.5 from the Metro light
42、rail of 10,000-60 0.25-2 40-9,000 1-20 wide bus 6,000-50 10-short car 2015 3,000 -2 traffic volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-stics table 5.1ransport capacity, transportation speed and resource consumption, and so on. Comparison of urban
43、passenger traffic characteringer t, effective means to meet the needs of urban traffic. The following table is a rail transport and other modes of urban passedispensable part of urban traffic structure, is the contradiction between supply and demand of the growing metropolis, citiesh efficiency, bec
44、ome an inurban traffic structure in the urban public transport system, rail traffic with a fast, large capacity, low pollution and higsit; Block highwaytran alleviate traffic congestion; For those who will not or cannot drive the person with a better option than conventional public on Metro system b
45、oils down to the following three points: by driving onto the tracks at the station transfer mode in order toshingtle. According to statistics, from 2000 to 2009 vehicle trip down 12.7%, bus travel has increased by 12%. Objectives of the Waay, opened in 1976. Current rail sizes for 5, station 86, tot
46、al 171.6km, net annual passenger volume reached 223 million peopbusiest subway, second only to the New York subw-ited States political center. For the Washington Metro system United States secondessure, rail transportation has incomparable advantages. Washington, DC, area of 177km2, and a population
47、 of 600,000, is a Unfic prem of traffic congestion in cities. Especially in urban population strength enormous traffic demand on the route to ease trafevel of resource consumption and environmental pollution, rail transport is undoubtedly an effective means to solve the probl60 do not occupy an area
48、 both in terms of transport over long distances, transport efficiency, or from the l-6 5、小明沿着长200米的长方形操场跑了一圈，共跑了600米。这个操场的面积是多少, 6、把一张长为8厘米、宽为6厘米的长方形纸，剪成一个面积最大的正方形，这个正方形的面积是多少平方厘米, 7、把一张长12分米、宽10分米的长方形铁皮剪成一个面积最大的正方形，这张正方形铁皮的面积是多少平方分米, 8、将一块长3米、宽2米的长方形布，减去一个面积最大的正方形，剩下部分的面积是多少平方米, 12、用篱笆围成一个长方形的养鸡场，一
49、边利用14米长的墙壁，篱笆共长32米，求养鸡场的面积。 13、用篱笆围成一个长方形的养鸡场，一边利用18米长的墙壁，篱笆共长40米，求养鸡场的面积。 0.5 from the Me-60 0.25-2 40-9,000 1-20 wide bus 6,000-50 10-15 3,000 short car 20-2 traffic volume (human/h) transport speed (km/people) Road area occupied (M2/people) scope bike 2,000 10-on. Comparison of urban passenger traffic characteristics table 5.1so is a rail transport and other modes of urban passenger transp