Area and volume of 3D surfaces :)

A complete video ⬇️

Area of 2D surfaces :)

Area of square

Area of triangle 

Area of rectangle 

Area of parallelogram 

Area of circle

#Formulae ♂️every maths student should know :)

Maths tricks for kids 🧒

Square the number ending with 5

65^2 = 4225 

➡️ Step no 1:

♀️ First Multiply the first digit by the first digit ➕ 1.

6 * (6+1) = 6*7

                = 42 

➡️ Step no 2:

♀️ Then write the number 25 next to the result from step no.1.

42 _25 ➡️ 4225 ✔️

Examples

Maths fun for kids 🧒

Adding numbers close to hundreds :

Suppose you are adding two numbers 

 

96 + 112 = 208

➡️ Step no 1:

♀️ First round the numbers to the nearest hundreds digit.

96 + 4= 100

➡️ Step no 2:

♀️ Now Add the result from step no.1 to the other number.

100 + 112 = 212 

➡️ Step no 3:

♀️ Add or subtract the result from step no. 2 by the number you rounded off. 

212 - 4 = 208