Let's observe the addition sums given below carefully. 15 + 16 + 17 + 18 + 19 + 20 + 21 (Odd number of consecutive terms) 32 + 33 + 34 + 35 + 36 + 37 + 38 + 39 + 40 + 41 (Even number of consecutive terms) Look at both the expressions. First expression consists of...
Addition
Addition of Numbers with Same Digit Increasingly Repeated
Let's observe the addition sums given below. 2 + 22 + 222 + 2222 = ? 4 + 44 + 444 + 4444 + 4444 = ? 5 + 55 + 555 + 5555 + 55555 + 555555 + 5555555 + 55555555 = ? 7 + 77 + 777 + 7777 + 77777 + 777777 = ? 8 + 88 + 888 + 8888 + 88888 + 888888 + 8888888 = ? 9 + 99 + 999 +...
Addition Made Easy
SUTRA: - By splitting the numbers into ones, tens, hundreds, etc. Remember we split a number by using addition only. It means a number will be split as a sum of two smaller numbers. For example – 67 as 60 + 7, 147 as 100 + 40 + 7. Example 1: 24 + 63 + 58 + 45...
Amazing facts about Square of numbers
Let's observe carefully the below written interesting pattern. 2² = 4 = 1 + 3 3² = 9 = 1 + 3 + 5 4² = 16 = 1 + 3 + 5 + 7 5² = 25 = 1 + 3 + 5 + 7 +9 6² = 36 = 1 + 3 + 5 + 7 + 9 + 11 7² = 49 = 1 + 3 + 5 + 7 + 9 + 11 + 13 8² = 64 = 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 9² =...
Amazingly Magical Addition
Here is again an amazingly beautiful magic of Maths, which includes addition of numbers. Let's enjoy the magic. Step 1:- In a 10 × 10 grid of numbers, from 1 to 100, take any 5 × 5 square grid of numbers anywhere in the grid. Step 2:- The sum of all the 25 numbers in...