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1-6年级应用题公式总复习

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1-6年级应用题公式总复习1-6年级应用题公式总复习 1-6年级应用题公式总复习,1, 小学数学常用公式大全(数量关系计算公式) 1、单价×数量,总价 2、单产量×数量,总产量 3、速度×时间,路程 4、工效×时间,工作总量 5、加数+加数,和 一个加数,和,另一个加数 被减数,减数,差 减数,被减数,差 被减数,减数,差 因数×因数,积 一个因数,积?另一个因数 被除数?除数,商 除数,被除数?商 被除数,商×除数 有余数的除法: 被除数,商×除数+余数 1、【和差问题公式】 (和+差)?2=较大数; (和-差)?2=较小数。 ...
1-6年级应用题公式总复习
1-6年级应用题公式总复习 1-6年级应用题公式总复习,1, 小学数学常用公式大全(数量关系计算公式) 1、单价×数量,总价 2、单产量×数量,总产量 3、速度×时间,路程 4、工效×时间,工作总量 5、加数+加数,和 一个加数,和,另一个加数 被减数,减数,差 减数,被减数,差 被减数,减数,差 因数×因数,积 一个因数,积?另一个因数 被除数?除数,商 除数,被除数?商 被除数,商×除数 有余数的除法: 被除数,商×除数+余数 1、【和差问题公式】 (和+差)?2=较大数; (和-差)?2=较小数。 2、【和倍问题公式】 和?(倍数+1)=一倍数; 一倍数×倍数=另一数, 或和-一倍数=另一数。 3、【差倍问题公式】 差?(倍数-1)=较小数; 较小数×倍数=较大数, 或较小数+差=较大数。 4、【平均数问题公式】 总数量?总份数=平均数。 、5、【一般行程问题公式】 平均速度×时间=路程; 路程?时间=平均速度; 路程?平均速度=时间。 6、【反向行程问题公式】 反向行程问题可以分为“相遇问题”(二人从两地出发,相向而行)和“相离问 题”(两人背向而行)两种。这两种题,都可用下面的公式解答: (速度和)×相遇(离)时间=相遇(离)路程; 相遇(离)路程?(速度和)=相遇(离)时间; 相遇(离)路程?相遇(离)时间=速度和。 7、【同向行程问题公式】 追及(拉开)路程?(速度差)=追及(拉开)时间; 追及(拉开)路程?追及(拉开)时间=速度差; (速度差)×追及(拉开)时间=追及(拉开)路程。 8、【列车过桥问题公式】 (桥长+列车长)?速度=过桥时间; (桥长+列车长)?过桥时间=速度; reinforced rate over 1% of reinforced concrete 7~9 7.3.3 steel engineering (1) steel processing steel of surface should clean no injury, paint pollution and rust, should in using Qian elimination clean, with particles-like or old rust of steel shall not using. Steel machining dimension shall conform to the construction drawings, processed steel's size should be within the tolerance value. Steel processing (2) steel steel installation program installed (3) welding of reinforcing steel, lashing straps welded: reinforcement in strict accordance with the relevant guidelines, horizontal even vertical banding, solid. Steel bar connection by soldering or lap, two-sided weld seam length 5d; single-sided weld seam length 10d. Lap length and not less than 35d. 7.3.4 formwork (1) selection of templates from the project due to the face, large amount of formwork. According to the structural arrangement and construction plan, using the following template types: 1) combined steel formwork is used for floor, wall and other parts, trucks delivered to the construction site, assembling manual. 2) arc arc segment of sluice and dam template the template still using steel formwork, produced according to Pier Arc size specifications. (2) template-1) combined steel formwork using conventional construction methods, part measuring wire clasp with the press at the site structure templates, and vertical shaft, and temporary reinforcement, transverse band on the formwork, on the screw, and final welding rod, by bus, correcting templates, and template and support reinforcement. 2) template and scaffold the quality of existing national standards or trade standards, wood quality standards II and above material should be. Brittle wood decay, serious distortions or prohibited. Mold flatness of the Panel should meet the standard requirements, should be as smooth as possible, pits are not allowed, wrinkles or other surface defects. Templates produce should meet the requirements of construction drawings of the buildings structural profile, its production tolerances up to SDJ 207-82 2.4. provisions of article 1. Slip, a mobile template, allowable deviation of a permanent special templates, template design documents approved by the supervisor of the regulations. Templates according to drawings 速度×过桥时间=桥、车长度之和。 9、【行船问题公式】 (1)一般公式: 静水速度(船速)+水流速度(水速)=顺水速度; 船速-水速=逆水速度; (顺水速度+逆水速度)?2=船速; (顺水速度-逆水速度)?2=水速。 (2)两船相向航行的公式: 甲船顺水速度+乙船逆水速度=甲船静水速度+乙船静水速度 (3)两船同向航行的公式: 后(前)船静水速度-前(后)船静水速度=两船距离缩小(拉大)速度。 (求出两船距离缩小或拉大速度后,再按上面有关的公式去解答题目)。 1-6年级应用题总复习,2, 10、【工程问题公式】 (1)一般公式: 工效×工时=工作总量; 工作总量?工时=工效; 工作总量?工效=工时。 (2)用假设工作总量为“1”的方法解工程问题的公式: 1?工作时间=单位时间内完成工作总量的几分之几; 1?单位时间能完成的几分之几=工作时间。 (注意:用假设法解工程题,可任意假定工作总量为2、3、4、5……。特别是假定工作总量为几个工作时间的最小公倍数时,分数工程问题可以转化为比较简单的整数工程问题,计算将变得比较简便。) 11、【盈亏问题公式】 (1)一次有余(盈),一次不够(亏),可用公式: (盈+亏)?(两次每人分配数的差)=人数。 例如,“小朋友分桃子,每人10个少9个,每人8个多7个。问:有多少个小朋友和多少个桃子,” 解(7+9)?(10-8)=16?2 =8(个)………………人数 10×8-9=80-9=71(个)………………………桃子 或8×8+7=64+7=71(个)(答略) (2)两次都有余(盈),可用公式: (大盈-小盈)?(两次每人分配数的差)=人数。 例如,“士兵背子弹作行军训练,每人背45发,多680发;若每人背50发,则还多200发。问:有士兵多少人,有子弹多少发,” 解(680-200)?(50-45)=480?5 =96(人) 45×96+680=5000(发) reinforced rate over 1% of reinforced concrete 7~9 7.3.3 steel engineering (1) steel processing steel of surface should clean no injury, paint pollution and rust, should in using Qian elimination clean, with particles-like or old rust of steel shall not using. Steel machining dimension shall conform to the construction drawings, processed steel's size should be within the tolerance value. Steel processing (2) steel steel installation program installed (3) welding of reinforcing steel, lashing straps welded: reinforcement in strict accordance with the relevant guidelines, horizontal even vertical banding, solid. Steel bar connection by soldering or lap, two-sided weld seam length 5d; single-sided weld seam length 10d. Lap length and not less than 35d. 7.3.4 formwork (1) selection of templates from the project due to the face, large amount of formwork. According to the structural arrangement and construction plan, using the following template types: 1) combined steel formwork is used for floor, wall and other parts, trucks delivered to the construction site, assembling manual. 2) arc arc segment of sluice and dam template the template still using steel formwork, produced according to Pier Arc size specifications. (2) template-1) combined steel formwork using conventional construction methods, part measuring wire clasp with the press at the site structure templates, and vertical shaft, and temporary reinforcement, transverse band on the formwork, on the screw, and final welding rod, by bus, correcting templates, and template and support reinforcement. 2) template and scaffold the quality of existing national standards or trade standards, wood quality standards II and above material should be. Brittle wood decay, serious distortions or prohibited. Mold flatness of the Panel should meet the standard requirements, should be as smooth as possible, pits are not allowed, wrinkles or other surface defects. Templates produce should meet the requirements of construction drawings of the buildings structural profile, its production tolerances up to SDJ 207-82 2.4. provisions of article 1. Slip, a mobile template, allowable deviation of a permanent special templates, template design documents approved by the supervisor of the regulations. Templates according to drawings 或50×96+200=5000(发)(答略) (3)两次都不够(亏),可用公式: (大亏-小亏)?(两次每人分配数的差)=人数。 例如,“将一批本子发给学生,每人发10本,差90本;若每人发8本,则仍差8本。有多少学生和多少本本子,” 解(90-8)?(10-8)=82?2 =41(人) 10×41-90=320(本)(答略) (4)一次不够(亏),另一次刚好分完,可用公式: 亏?(两次每人分配数的差)=人数。 (例略) (5)一次有余(盈),另一次刚好分完,可用公式: 盈?(两次每人分配数的差)=人数。 1-6年级应用题公式总复习,3, 12、【鸡兔问题公式】 (1)已知总头数和总脚数,求鸡、兔各多少: (总脚数-每只鸡的脚数×总头数)?(每只兔的脚数-每只鸡的脚数)=兔数; 总头数-兔数=鸡数。 或者是(每只兔脚数×总头数-总脚数)?(每只兔脚数-每只鸡脚数)=鸡数; 总头数-鸡数=兔数。 例如,“有鸡、兔共36只,它们共有脚100只,鸡、兔各是多少只,” 解一(100-2×36)?(4-2)=14(只)………兔; 36-14=22(只)……………………………鸡。 解二(4×36-100)?(4-2)=22(只)………鸡; 36-22=14(只)…………………………兔。 (答略) (2)已知总头数和鸡兔脚数的差数,当鸡的总脚数比兔的总脚数多时,可用公式 (每只鸡脚数×总头数-脚数之差)?(每只鸡的脚数+每只兔的脚数)=兔数; 总头数-兔数=鸡数 或(每只兔脚数×总头数+鸡兔脚数之差)?(每只鸡的脚数+每只免的脚数)=鸡数; 总头数-鸡数=兔数。(例略) (3)已知总数与鸡兔脚数的差数,当兔的总脚数比鸡的总脚数多时,可用公式。 reinforced rate over 1% of reinforced concrete 7~9 7.3.3 steel engineering (1) steel processing steel of surface should clean no injury, paint pollution and rust, should in using Qian elimination clean, with particles-like or old rust of steel shall not using. Steel machining dimension shall conform to the construction drawings, processed steel's size should be within the tolerance value. Steel processing (2) steel steel installation program installed (3) welding of reinforcing steel, lashing straps welded: reinforcement in strict accordance with the relevant guidelines, horizontal even vertical banding, solid. Steel bar connection by soldering or lap, two-sided weld seam length 5d; single-sided weld seam length 10d. Lap length and not less than 35d. 7.3.4 formwork (1) selection of templates from the project due to the face, large amount of formwork. According to the structural arrangement and construction plan, using the following template types: 1) combined steel formwork is used for floor, wall and other parts, trucks delivered to the construction site, assembling manual. 2) arc arc segment of sluice and dam template the template still using steel formwork, produced according to Pier Arc size specifications. (2) template-1) combined steel formwork using conventional construction methods, part measuring wire clasp with the press at the site structure templates, and vertical shaft, and temporary reinforcement, transverse band on the formwork, on the screw, and final welding rod, by bus, correcting templates, and template and support reinforcement. 2) template and scaffold the quality of existing national standards or trade standards, wood quality standards II and above material should be. Brittle wood decay, serious distortions or prohibited. Mold flatness of the Panel should meet the standard requirements, should be as smooth as possible, pits are not allowed, wrinkles or other surface defects. Templates produce should meet the requirements of construction drawings of the buildings structural profile, its production tolerances up to SDJ 207-82 2.4. provisions of article 1. Slip, a mobile template, allowable deviation of a permanent special templates, template design documents approved by the supervisor of the regulations. Templates according to drawings (每只鸡的脚数×总头数+鸡兔脚数之差)?(每只鸡的脚数+每只兔的脚数)=兔数; 总头数-兔数=鸡数。 或(每只兔的脚数×总头数-鸡兔脚数之差)?(每只鸡的脚数+每只兔的脚数)=鸡数; 总头数-鸡数=兔数。(例略) (4)得失问题(鸡兔问题的推广题)的解法,可以用下面的公式: (1只合格品得分数×产品总数-实得总分数)?(每只合格品得分数+每只不合格品扣分数)=不合格品数。或者是总产品数-(每只不合格品扣分数×总产品数+实得总分数)?(每只合格品得分数+每只不合格品扣分数)=不合格品数。 例如,“灯泡厂生产灯泡的工人,按得分的多少给工资。每生产一个合格品记4分,每生产一个不合格品不仅不记分,还要扣除15分。某工人生产了1000只灯泡,共得3525分,问其中有多少个灯泡不合格,” 解一(4×1000-3525)?(4+15) =475?19=25(个) 解二1000-(15×1000+3525)?(4+15) ,1000-18525?19 =1000-975=25(个)(答略) (“得失问题”也称“运玻璃器皿问题”,运到完好无损者每只给运费××元,破损者不仅不给运费,还需要赔成本××元……。它的解法显然可套用上述公式。) (5)鸡兔互换问题(已知总脚数及鸡兔互换后总脚数,求鸡兔各多少的问题),可用下面的公式: 〔(两次总脚数之和)?(每只鸡兔脚数和)+(两次总脚数之差)?(每只鸡兔脚数之差)〕?2=鸡数; 〔(两次总脚数之和)?(每只鸡兔脚数之和)-(两次总脚数之差)?(每只鸡兔脚数之差)〕?2=兔数。 例如,“有一些鸡和兔,共有脚44只,若将鸡数与兔数互换,则共有脚52只。鸡兔各是多少只,” 解〔(52+44)?(4+2)+(52-44)?(4-2)〕?2 =20?2=10(只)……………………………鸡 〔(52+44)?(4+2)-(52-44)?(4-2)〕?2 =12?2=6(只)…………………………兔(答略) 1-6年级应用题总复习(4) 13、【植树问题公式】 (1)不封闭线路的植树问题: 间隔数+1=棵数;(两端植树) 路长?间隔长+1=棵数。 或间隔数-1=棵数;(两端不植) 路长?间隔长-1=棵数; reinforced rate over 1% of reinforced concrete 7~9 7.3.3 steel engineering (1) steel processing steel of surface should clean no injury, paint pollution and rust, should in using Qian elimination clean, with particles-like or old rust of steel shall not using. Steel machining dimension shall conform to the construction drawings, processed steel's size should be within the tolerance value. Steel processing (2) steel steel installation program installed (3) welding of reinforcing steel, lashing straps welded: reinforcement in strict accordance with the relevant guidelines, horizontal even vertical banding, solid. Steel bar connection by soldering or lap, two-sided weld seam length 5d; single-sided weld seam length 10d. Lap length and not less than 35d. 7.3.4 formwork (1) selection of templates from the project due to the face, large amount of formwork. According to the structural arrangement and construction plan, using the following template types: 1) combined steel formwork is used for floor, wall and other parts, trucks delivered to the construction site, assembling manual. 2) arc arc segment of sluice and dam template the template still using steel formwork, produced according to Pier Arc size specifications. (2) template-1) combined steel formwork using conventional construction methods, part measuring wire clasp with the press at the site structure templates, and vertical shaft, and temporary reinforcement, transverse band on the formwork, on the screw, and final welding rod, by bus, correcting templates, and template and support reinforcement. 2) template and scaffold the quality of existing national standards or trade standards, wood quality standards II and above material should be. Brittle wood decay, serious distortions or prohibited. Mold flatness of the Panel should meet the standard requirements, should be as smooth as possible, pits are not allowed, wrinkles or other surface defects. Templates produce should meet the requirements of construction drawings of the buildings structural profile, its production tolerances up to SDJ 207-82 2.4. provisions of article 1. Slip, a mobile template, allowable deviation of a permanent special templates, template design documents approved by the supervisor of the regulations. Templates according to drawings 路长?间隔数=每个间隔长; 每个间隔长×间隔数=路长。 (2)封闭线路的植树问题: 路长?间隔数=棵数; 路长?间隔数=路长?棵数 =每个间隔长; 每个间隔长×间隔数=每个间隔长×棵数=路长。 (3)平面植树问题: 占地总面积?每棵占地面积=棵数 14、【求分率、百分率问题的公式】 比较数?标准数=比较数的对应分(百分)率; 增长数?标准数=增长率; 减少数?标准数=减少率。 或者是 两数差?较小数=多几(百)分之几(增); 两数差?较大数=少几(百)分之几(减)。 15、【增减分(百分)率互求公式】 增长率?(1+增长率)=减少率; 减少率?(1-减少率)=增长率。 比甲丘面积少几分之几,” 解这是根据增长率求减少率的应用题。按公式,可解答为 百分之几,” 解这是由减少率求增长率的应用题,依据公式,可解答为 16、【求比较数应用题公式】 标准数×分(百分)率=与分率对应的比较数; 标准数×增长率=增长数; 标准数×减少率=减少数; 标准数×(两分率之和)=两个数之和; 标准数×(两分率之差)=两个数之差。 17、【求标准数应用题公式】 比较数?与比较数对应的分(百分)率=标准数; 增长数?增长率=标准数; 减少数?减少率=标准数; 两数和?两率和=标准数; 两数差?两率差=标准数; 1-6年级应用题总复习,5, 18\【方阵问题公式】 (1)实心方阵:(外层每边人数)2=总人数。 reinforced rate over 1% of reinforced concrete 7~9 7.3.3 steel engineering (1) steel processing steel of surface should clean no injury, paint pollution and rust, should in using Qian elimination clean, with particles-like or old rust of steel shall not using. Steel machining dimension shall conform to the construction drawings, processed steel's size should be within the tolerance value. Steel processing (2) steel steel installation program installed (3) welding of reinforcing steel, lashing straps welded: reinforcement in strict accordance with the relevant guidelines, horizontal even vertical banding, solid. Steel bar connection by soldering or lap, two-sided weld seam length 5d; single-sided weld seam length 10d. Lap length and not less than 35d. 7.3.4 formwork (1) selection of templates from the project due to the face, large amount of formwork. According to the structural arrangement and construction plan, using the following template types: 1) combined steel formwork is used for floor, wall and other parts, trucks delivered to the construction site, assembling manual. 2) arc arc segment of sluice and dam template the template still using steel formwork, produced according to Pier Arc size specifications. (2) template-1) combined steel formwork using conventional construction methods, part measuring wire clasp with the press at the site structure templates, and vertical shaft, and temporary reinforcement, transverse band on the formwork, on the screw, and final welding rod, by bus, correcting templates, and template and support reinforcement. 2) template and scaffold the quality of existing national standards or trade standards, wood quality standards II and above material should be. Brittle wood decay, serious distortions or prohibited. Mold flatness of the Panel should meet the standard requirements, should be as smooth as possible, pits are not allowed, wrinkles or other surface defects. Templates produce should meet the requirements of construction drawings of the buildings structural profile, its production tolerances up to SDJ 207-82 2.4. provisions of article 1. Slip, a mobile template, allowable deviation of a permanent special templates, template design documents approved by the supervisor of the regulations. Templates according to drawings (2)空心方阵: (最外层每边人数)2-(最外层每边人数-2×层数)2=中空方阵的人数。 或者是 (最外层每边人数-层数)×层数×4=中空方阵的人数。 总人数?4?层数+层数=外层每边人数。 例如,有一个3层的中空方阵,最外层有10人,问全阵有多少人, 解一先看作实心方阵,则总人数有 10×10=100(人) 再算空心部分的方阵人数。从外往里,每进一层,每边人数少2,则进到第四层,每边人数是 10-2×3=4(人) 所以,空心部分方阵人数有 4×4=16(人) 故这个空心方阵的人数是 100-16=84(人) 解二直接运用公式。根据空心方阵总人数公式得 (10-3)×3×4=84(人) 19、【利率问题公式】利率问题的类型较多,现就常见的单利、复利问题,介绍其计算公式如下。 (1)单利问题: 本金×利率×时期=利息; 本金×(1+利率×时期)=本利和; 本利和?(1+利率×时期)=本金。 年利率?12=月利率; 月利率×12=年利率。 (2)复利问题: 本金×(1+利率)存期期数=本利和。 例如,“某人存款2400元,存期3年,月利率为10(2‰(即月利1分零2毫),三年到期后,本利和共是多少元,” 解(1)用月利率求。 3年=12月×3=36个月 2400×(1+10(2,×36) =2400×1(3672 =3281(28(元) (2)用年利率求。 先把月利率变成年利率: 10(2‰×12=12(24, 再求本利和: 2400×(1+12(24,×3) =2400×1(3672 =3281(28(元)(答略) reinforced rate over 1% of reinforced concrete 7~9 7.3.3 steel engineering (1) steel processing steel of surface should clean no injury, paint pollution and rust, should in using Qian elimination clean, with particles-like or old rust of steel shall not using. Steel machining dimension shall conform to the construction drawings, processed steel's size should be within the tolerance value. Steel processing (2) steel steel installation program installed (3) welding of reinforcing steel, lashing straps welded: reinforcement in strict accordance with the relevant guidelines, horizontal even vertical banding, solid. Steel bar connection by soldering or lap, two-sided weld seam length 5d; single-sided weld seam length 10d. Lap length and not less than 35d. 7.3.4 formwork (1) selection of templates from the project due to the face, large amount of formwork. According to the structural arrangement and construction plan, using the following template types: 1) combined steel formwork is used for floor, wall and other parts, trucks delivered to the construction site, assembling manual. 2) arc arc segment of sluice and dam template the template still using steel formwork, produced according to Pier Arc size specifications. (2) template-1) combined steel formwork using conventional construction methods, part measuring wire clasp with the press at the site structure templates, and vertical shaft, and temporary reinforcement, transverse band on the formwork, on the screw, and final welding rod, by bus, correcting templates, and template and support reinforcement. 2) template and scaffold the quality of existing national standards or trade standards, wood quality standards II and above material should be. Brittle wood decay, serious distortions or prohibited. Mold flatness of the Panel should meet the standard requirements, should be as smooth as possible, pits are not allowed, wrinkles or other surface defects. Templates produce should meet the requirements of construction drawings of the buildings structural profile, its production tolerances up to SDJ 207-82 2.4. provisions of article 1. Slip, a mobile template, allowable deviation of a permanent special templates, template design documents approved by the supervisor of the regulations. Templates according to drawings
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