小学1--6年级有数学公式.docx

小学1-6年级有数学公式小学1-6年级有数学公式 小学1-6年级所有数学公式 1 每份数×份数总数 ? 总数÷每份数份数 ? 总数÷份数每份数 2 1倍数×倍数几倍数 ? 几倍数÷1倍数倍数 ? 几倍数÷倍数1倍数 3 速度×时间路程 ? 路程÷速度时间 ? 路程÷时间速度 4 单价×数量总价 ? 总价÷单价数量 ? 总价÷数量单价 5 工作效率×工作时间工作总量 ? 工作总量÷工作效率工作时间 ? 工作总量÷工作时间工作效率 6 加数加数和 ? 和一个加数另一个加数 7 被减数减数差 ? 被减数差减数 ? 差减数被减数 8 因数×因数积 ? 积÷一个因数另一个因数 9 被除数÷除数商 ? 被除数÷商除数 ? 商×除数被除数 小学数学图形计算公式 1 正方形 ? C周长 S面积 a边长 ? 周长边长×4 ? C=4a ? 面积=边长×边长 ? S=a×a 2 正方体 ? V:体积 a:棱长 ? 表面积=棱长×棱长×6 ? S表=a×a×6 ? 体积=棱长×棱长×棱长 ? V=a×a×a 3 长方形 ? C周长 S面积 a边长 ? 周长=(长+宽)×2 ? C=2(a+b) ? 面积=长×宽 ? S=ab 4 长方体 ? V:体积 s:面积 a:长 b: 宽 h:高 ? (1)表面积(长×宽+长×高+宽×高)×2 ? S=2(ab+ah+bh) ? (2)体积=长×宽×高 ? V=abh 5 三角形 ? s面积 a底 h高 ? 面积=底×高÷2 ? s=ah÷2 ? 三角形高=面积 ×2÷底 ? 三角形底=面积 ×2÷高 6 平行四边形 ? s面积 a底 h高 ? 面积=底×高 ? s=ah 7 梯形 ? s面积 a上底 b下底 h高 ? 面积=(上底+下底)×高÷2 ? s=(a+b)× h÷2 8 圆形 ? S面积 C周长 d=直径 r=半径 ? (1)周长=直径×=2××半径 ? C=d=2r ? (2)面积=半径×半径× 9 圆柱体 ? v:体积 h:高 s;底面积 r:底面半径 c:底面周长 ? (1)侧面积=底面周长×高 ? (2)表面积=侧面积+底面积×2 ? (3)体积=底面积×高 ? （4）体积侧面积÷2×半径 10 圆锥体 ? v:体积 h:高 s;底面积 r:底面半径 ? 体积=底面积×高÷3 总数÷总份数平均数 和差问题的公式 ? (和差)÷2大数 ? (和差)÷2小数 和倍问题 ? 和÷(倍数1)小数 ? 小数×倍数大数 ? (或者 和小数大数) 差倍问题 ? 差÷(倍数1)小数 ? 小数×倍数大数 ? (或 小数差大数) 植树问题 1 非封闭线路上的植树问题主要可分为以下三种情形: 如果在非封闭线路的两端都要植树,那么: 株数段数1全长÷株距1 全长株距×(株数1) 株距全长÷(株数1) 如果在非封闭线路的一端要植树,另一端不要植树,那么: 株数段数全长÷株距 全长株距×株数 株距全长÷株数 如果在非封闭线路的两端都不要植树,那么: 株数段数1全长÷株距1 全长株距×(株数1) 株距全长÷(株数1) 2 封闭线路上的植树问题的数量关系如下 株数段数全长÷株距 全长株距×株数 株距全长÷株数 盈亏问题 (盈亏)÷两次分配量之差参加分配的份数 (大盈小盈)÷两次分配量之差参加分配的份数 (大亏小亏)÷两次分配量之差参加分配的份数 相遇问题 相遇路程速度和×相遇时间 相遇时间相遇路程÷速度和 速度和相遇路程÷相遇时间 追及问题 追及距离速度差×追及时间 追及时间追及距离÷速度差 速度差追及距离÷追及时间 流水问题 顺流速度静水速度水流速度 逆流速度静水速度水流速度 静水速度(顺流速度逆流速度)÷2 水流速度(顺流速度逆流速度)÷2 浓度问题 溶质的重量溶剂的重量溶液的重量 溶质的重量÷溶液的重量×100%浓度 溶液的重量×浓度溶质的重量 溶质的重量÷浓度溶液的重量 利润与折扣问题 利润售出价成本 利润率利润÷成本×100%(售出价÷成本1)×100% 涨跌金额本金×涨跌百分比 折扣实际售价÷原售价×100%(折扣1) 利息本金×利率×时间 税后利息本金×利率×时间×(120%) letters and calls, and do practical things for the masses combine good, effective through reaching people at the service of the "last mile". Third, foster the development of new energy, new General Secretary XI Jinping stressed development of innovation forest restructuring, revitalization of the old industrial bases in Northeast China is the State's major strategy, Central has issued comprehensive opinions of revitalizing Northeast China and other old industrial bases, the CPC Central Committee on revitalization in Northeast China were . Vigorous determination does not waver, the work does not slacken off. Be firm with in the development has more to do with hard, and not muddle along, passive inaction. To rely on their own efforts, can't wait, can't wait, stand still. This not only provides new opportunities for development in our region, and gave us new requirements. We must seize the opportunity, full use of national policy, has to be more complicated, to start and target, give full play to the initiative of leading cadres at all levels, active, active, focusing on building new momentum for development, accelerating transformation of forest development. To implement the new development philosophy. Philosophy is the action guide, new ideas and new developments. Carrying out innovation, coordination and development of green, open, shared ideas, must be measurable, direct action with new development concepts, training cadres. In a new development concept as a yardstick. Established in line with the new concept of evaluation system and evaluation criterion, embodies the new development policy, organization, mandate implementation, always measured by the new development philosophy, continuous correction of forest transition course. In a new development concept for the path command. As part of the implementation of the new development philosophy followed and action guidelines, firmly adjusted, corrected and reject unsuitable, inappropriate and even against the new development ideas, behaviors and practices, more pragmatic approach based on a broad vision, and creatively carry out ecological construction, industrial development, improving people's livelihood, such as the work to ensure that new development ideas take root in forest areas. In a new development concept for weapon training cadre. Education leaders "in the new, nothing" two articles, enhancing vitality and power. Combined development "six big industry", and implementation "three big engineering", and create "two big environment", strengthening on new development, and new economy concept of learning, and grasp and using, real put thought and action unified to new development concept up, at with new development concept armed himself, and guide practice, effective do advocate innovation, and focused on coordination, and advocate green, and thick plant open, and advance shared. Second, we must rely on Science and technology affects. Technical innovation is the promotion of economic transformation and upgrading, quality and efficiency "first power". letters and calls, and do practical things for the masses combine good, effective through reaching people at the service of the "last mile". Third, foster the development of new energy, new General Secretary XI Jinping stressed development of innovation forest restructuring, revitalization of the old industrial bases in Northeast China is the State's major strategy, Central has issued comprehensive opinions of revitalizing Northeast China and other old industrial bases, the CPC Central Committee on revitalization in Northeast China were . Vigorous determination does not waver, the work does not slacken off. Be firm with in the development has more to do with hard, and not muddle along, passive inaction. To rely on their own efforts, can't wait, can't wait, stand still. This not only provides new opportunities for development in our region, and gave us new requirements. We must seize the opportunity, full use of national policy, has to be more complicated, to start and target, give full play to the initiative of leading cadres at all levels, active, active, focusing on building new momentum for development, accelerating transformation of forest development. To implement the new development philosophy. Philosophy is the action guide, new ideas and new developments. Carrying out innovation, coordination and development of green, open, shared ideas, must be measurable, direct action with new development concepts, training cadres. In a new development concept as a yardstick. Established in line with the new concept of evaluation system and evaluation criterion, embodies the new development policy, organization, mandate implementation, always measured by the new development philosophy, continuous correction of forest transition course. In a new development concept for the path command. As part of the implementation of the new development philosophy followed and action guidelines, firmly adjusted, corrected and reject unsuitable, inappropriate and even against the new development ideas, behaviors and practices, more pragmatic approach based on a broad vision, and creatively carry out ecological construction, industrial development, improving people's livelihood, such as the work to ensure that new development ideas take root in forest areas. In a new development concept for weapon training cadre. Education leaders "in the new, nothing" two articles, enhancing vitality and power. Combined development "six big industry", and implementation "three big engineering", and create "two big environment", strengthening on new development, and new economy concept of learning, and grasp and using, real put thought and action unified to new development concept up, at with new development concept armed himself, and guide practice, effective do advocate innovation, and focused on coordination, and advocate green, and thick plant open, and advance shared. Second, we must rely on Science and technology affects. Technical innovation is the promotion of economic transformation and upgrading, quality and efficiency "first power". livelihood, is related to people's well-being and social harmony and stability. We need to protect and improve the livelihood of the people as the starting point and ending point of transition and improve forest people's feeling and happiness. To promote poverty relief and development work. Implementing poverty alleviation crucial project is a major strategic decision made by the CPC Central Committee, is also determined by the provincial "first project", we must unify thinking and action to the requirements of the Central, provincial, resolutely win the poverty battle. The previous phase I to 18 stations, Tahe, Pine Ridge research, visited many of the poor, go, the heavier, more pressure. For poverty relief and development work, we must pay attention to it, always in mind, grasping hands, should not be blindly optimistic, there can be no slack. Poverty alleviation and development lies in precise, accurate. Present, in order to find out the real base of poor people as soon as possible, come up with feasible poverty standards, state card, built on the basis of document management. To firmly establish the "poverty reduction" concept, increase the intensity of resource integration, and related funding, with limited funds wisely. By using a combination of employment, entrepreneurship for poverty eradication poverty eradication, education, poverty alleviation, medical aid of poverty means, due to effects of policies, those policies, ensure the completion of mission objectives for poverty eradication for the year. To actively promote the construction of new towns. In February this year, promulgated by the State Council on further promoting urbanization construction of new opinions, proposed to adhere to the people-centered, four modernizations synchronization, optimization, ecology civilization and cultural heritage of new urbanization path with Chinese characteristics. According to district-wide construction of civilized city and the beautiful countryside, further strengthening of urban transport, water supply and drainage and sewage, waste disposal ground, underground, such as infrastructure construction, strive to create a safer and more livable environment. To actively seize the full stop and opportunities for poverty alleviation and development, further efforts to increase forest villages merge, population to the County (district) Council sites and centres concentrated in villages and towns. Combined development of urban construction and tourism industries, careful planning and construction of a number of suitable for residential and farm tour towns and villages, forming one village one product, a feature pattern. Closer to the masses. Since last year, our in-depth implementation of the leading cadres of grassroots masses at work, solve the problems of a large number of people, get the masses give wholehearted support to and praise, this work will carry on, absolutely cannot or movement. Grassroots masses and cadres in combination with poverty reduction, combined with the steady work of livelihood, is related to people's well-being and social harmony and stability. We need to protect and improve the livelihood of the people as the starting point and ending point of transition and improve forest people's feeling and happiness. To promote poverty relief and development work. Implementing poverty alleviation crucial project is a major strategic decision made by the CPC Central Committee, is also determined by the provincial "first project", we must unify thinking and action to the requirements of the Central, provincial, resolutely win the poverty battle. The previous phase I to 18 stations, Tahe, Pine Ridge research, visited many of the poor, go, the heavier, more pressure. For poverty relief and development work, we must pay attention to it, always in mind, grasping hands, should not be blindly optimistic, there can be no slack. Poverty alleviation and development lies in precise, accurate. Present, in order to find out the real base of poor people as soon as possible, come up with feasible poverty standards, state card, built on the basis of document management. To firmly establish the "poverty reduction" concept, increase the intensity of resource integration, and related funding, with limited funds wisely. By using a combination of employment, entrepreneurship for poverty eradication poverty eradication, education, poverty alleviation, medical aid of poverty means, due to effects of policies, those policies, ensure the completion of mission objectives for poverty eradication for the year. To actively promote the construction of new towns. In February this year, promulgated by the State Council on further promoting urbanization construction of new opinions, proposed to adhere to the people-centered, four modernizations synchronization, optimization, ecology civilization and cultural heritage of new urbanization path with Chinese characteristics. According to district-wide construction of civilized city and the beautiful countryside, further strengthening of urban transport, water supply and drainage and sewage, waste disposal ground, underground, such as infrastructure construction, strive to create a safer and more livable environment. To actively seize the full stop and opportunities for poverty alleviation and development, further efforts to increase forest villages merge, population to the County (district) Council sites and centres concentrated in villages and towns. Combined development of urban construction and tourism industries, careful planning and construction of a number of suitable for residential and farm tour towns and villages, forming one village one product, a feature pattern. Closer to the masses. Since last year, our in-depth implementation of the leading cadres of grassroots masses at work, solve the problems of a large number of people, get the masses give wholehearted support to and praise, this work will carry on, absolutely cannot or movement. Grassroots masses and cadres in combination with poverty reduction, combined with the steady work of letters a