Numbers can be playful! In this chapter we explore fun patterns — which numbers are even or odd, a famous sequence found in flowers and poetry, and magic squares where every row and column adds up the same.
🔢Parity (Even & Odd): Even numbers can be split into pairs with nothing left over. Odd numbers always have one left over.
➕Adding Evens & Odds: even + even = even, odd + odd = even, but even + odd = odd.
🌻Virahanka-Fibonacci Numbers: In this special sequence 1, 2, 3, 5, 8, 13, 21... each number is the sum of the two numbers before it — it even shows up in flower petals!
✨Magic Squares: In a 3×3 grid filled with the numbers 1 to 9, every row, column and diagonal can add up to the same "magic sum" — which is always 15.
✖️Multiplying Evens & Odds: even × even = even, odd × odd = odd, but even × odd = even.
Try thisWhat comes next in 1, 2, 3, 5, 8, 13, ___? Add the last two numbers: 8 + 13 = 21. Answer: 21
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