Mathematics handwritten newspaper 8k paper

Basic knowledge of primary school mathematics finishing primary school grade one? A preliminary understanding of addition and subtraction. Learn basic addition and subtraction.

Second grade? Perfect addition, subtraction, multiplication and division, multiplication in table, learning application problems and basic geometry.

Third grade? Learn addition and subtraction within ten thousand, length unit and quality unit, cognition multiple, multiple digits multiplied by one digit, time amount and unit. A preliminary understanding of the geometric figures and fractions of rectangles and squares.

Fourth grade? Hundreds of millions of understanding, area units (hectares and square kilometers), angle measurement, double-digit multiplier method, parallelogram and trapezoid geometric figures and bar statistical charts.

Fifth grade? Decimal multiplication and division, simple equation operation, graphic area calculation, possibility and understanding of tree planting problem.

Sixth grade? Master the multiplication and division of fractions, ratios and percentages, circles and sectors.

Mathematical formula of handwritten newspaper content;

Area of triangle = base × height ÷2. The formula S= a×h÷2.

Square area = side length × side length formula S= a×a

Area of rectangle = length× width Formula S= a×b

Area of parallelogram = base× height Formula S= a×h

Trapezoidal area = (upper bottom+lower bottom) × height ÷2 Formula S=(a+b)h÷2

Sum of internal angles: sum of internal angles of triangle = 180 degrees.

Cuboid volume = length× width× height formula: V=abh

Volume of cuboid (or cube) = bottom area × height formula: V=abh.

Volume of cube = side length × side length × side length formula: V=aaa.

Circumference = diameter × π formula: L = π d = 2π r

Area of circle = radius × radius× π formula: s = π R2.

Surface (side) area of cylinder: The surface (side) area of cylinder is equal to the perimeter of bottom multiplied by height. Formula: s = ch = π DH = 2π RH.

Surface area of cylinder: the surface area of cylinder is equal to the perimeter of the bottom multiplied by the height plus the area of the circles at both ends. Formula: S=ch+2s=ch+2πr2.