必威体育精装版小学数学公式大全（The latest math formulas for elementary school）.docVIP

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必威体育精装版小学数学公式大全（The latest math formulas for elementary school）.doc

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必威体育精装版小学数学公式大全（The latest math formulas for elementary school）

必威体育精装版小学数学公式大全（The latest math formulas for elementary school） Math formulas for elementary school 1, the perimeter of the rectangle = (long + width) * 2 C= (a+b) * 2 2, square perimeter = side length * 4 C=4a 3, rectangular area = long * width S=ab 4, square area = length side * side length S=a.a= a 5, the bottom of the triangle area = x height / 2 S=ah / 2 6. The area of the parallelogram = bottom * high S=ah Area = 7, trapezoidal (bottom + bottom) x height / 2 S= (a + b) H / 2 8 x 2 d=2r diameter = radius radius = 2 D / 2 r= diameter. 9, the circumference of a circle diameter x = pi = pi * * 2 c= D =2 radius Pi Pi R 10, the area of a circle radius radius x x = pi = Pi r? 11. The surface area of the cuboid = (L * W + f * H + W * h) * 2 12, cuboid volume = * * width * height V =abh 13, the cube surface area = length x length x 6 S =6a 14, volume of cuboids = length * * edge length edge length V=a.a.a= a 15, the lateral area of the cylinder = the circumference of the bottom circle * high S=ch 16, the surface area of the cylinder = upper and lower surface area + side area S=2 R +2 rh=2 (Pi Pi Pi Pi (D / 2) +2 D h=2 (C / 2) pi / 2 / PI) +Ch 17 cylinder volume = bottom area * high V=Sh V= R h= (D / pi pi pi (h= 2) C / 2 / PI) H 18, the volume of the cone bottom area = x height / 3 V=Sh / 3= R H / pi pi 3= (D / 2) H / 3= (C / 2 / pi pi / 3) H 19, cuboid (cube and cylinder). 1, the number of copies of each number x = total number, each number of copies, copies number = = each number 2, 1 times of a few a few multiples of multiples of multiples of x = 1, = several multiples of multiples of multiples of multiples / = 1 times 3, speed time distance, distance = x = distance / time time speed = speed 4, the number of the total price, price x = = = the number of total number of unit price, unit price 5, work efficiency * working time = total amount, total working efficiency = total working time, work time work = work efficiency 6, the addend addend = + and - addend = other addend