What are the formulas of elementary school mathematics motif?

1, the perimeter of the rectangle = (length+width) × 2c = (a+b )× 2; Perimeter of a square = side length × 4c = 4a; Area of rectangle = length× width s = area of ab square = side length× side length s = ab a; Area of triangle = base × height ÷ 2s = ah ÷ 2; Area of parallelogram = base × height s = ah trapezoid area = (upper base+lower base) × height ÷2S=(a+b)h÷2.

2. The circumference of a circle = pi × diameter = pi× radius× 2c = π d = 2π r. The area of a circle = pi× radius× radius S=πr? ; Area of combined graph = bottom× height s = (a+b) h; Volume and cubic number: the volume of a rectangle = length × width × height V=abh The volume of a square = side length × side length × side length v = a? .

3. Volume of cylinder = pi × radius× radius× height V=πr? h； The volume of the cone = 1/3π× radius× radius× height V= 1/3πr? h； Multiplication and Fraction: Fraction times integer fraction times integer numerator times integer as numerator denominator; Fraction times fraction times fractional numerator times numerator as numerator denominator times denominator as denominator.

Fast learning method of mathematics

1. Set clear learning goals: Set clear and measurable learning goals and check the progress regularly. This helps to keep the motivation of learning.

2, reasonable arrangement of time: don't just arrange the study time before class or before the exam. We should allocate some time to study mathematics every day, so that our knowledge can be consolidated and expanded.

3. Making and using study cards: Using study cards is a good way to learn mathematics. Formulas, definitions, theorems and so on can be recorded. Card, and then through repeated review and recitation to deepen understanding and memory.

4. Mastering basic concepts and principles: Learning mathematics requires understanding basic concepts and principles. For each new mathematical concept or theorem, we must take the time to thoroughly understand its meaning and application.

5. Doing problems and exercises: Only through a large number of exercises can we truly master mathematical knowledge and skills. You should complete some exercises and exercises regularly to test your understanding and application ability of knowledge.

6. Use a variety of problem-solving methods: Try to use different problem-solving methods for the same topic, which will help deepen the understanding of different problem-solving methods and improve the problem-solving ability and thinking mode.