Multiply by 25 Trick in 30 Sec! | Maths Short | Quick Mental Math | Teach Tech

Описание: “Multiply by 25 in 30 seconds”
CBSE & State Board ke class 9‑12 students ke liye:

🔹 Trick: 25 = 100 ÷ 4
So, number ko pehle 4 se divide karo, phir do zeros add karo:
Example: 36 × 25 → (36 ÷ 4) = 9 → 900
Remainder aayega: agar 1, 2, ya 3 ho → +25, +50, +75.

🎯 Aaj seekho kaise head mein 25 se multiply karte ho bina calculator ke!

🚀 *Practice questions:*
1) 17 × 25
2) 48 × 25
3) 53 × 25
Comments me answers likho & doubt clear karwao!

📚 Useful resources:
– NCERT Math class 9–12
– Mental Math Tricks book (Josh Rappaport)

👉 *NEXT VIDEO COMING SOON:* Multiply by 125 tip (1000 ÷ 8) — mental math in seconds!

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