Squares std8 Page - 11 EM
📐 Square of a Number
Split the number into tens place value, units digit
📐 Formula: (multiple of ten + unit digit)² = (multiple of ten)² + 2x(multiple of ten)x(unit digit) + (unit digit)²
Number: 47
🔢 Split: tens place (40), units (7)
✍️ Step-by-Step: Calculate Square Using (a+b)²
1 Split the number
The number 47 can be written as multiple of ten + unit digit,
2 Value of a (tens place value)
tens place value = ?
3 Value of b (units digit)
units digit = ?
4 square of the first number
Calculate firdt squar = ?
5 Product of the two numbers
Calculate product = ?
6 Douuble of the product
Calculate 2 × product= ?
7 Square of the last number
Calculate second square = ?
8 Sum of these three calculated values
sum of three values= ?
9 Final square
Therefore, 47² = ?