Seyi Obosi on Instagram: "This morning while getting ready for school, I tested my daughter: “What’s 11 × 25?” She snapped back the answer and then showed me a math trick that blew my mind👇🏽 ✨ How to multiply any 2-digit number by 11: 1.Write the number (example: 25). 2.Leave a space in the middle (2 _ 5). 3.Add the first and last digits (2 + 5 = 7). 4.Place the sum in the middle → 275. ✅ The fun part? This works for any 2-digit number! •If the sum is less than 10, just drop it in the middle.