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Q1️⃣:
Which vitamin is mainly found in oranges? 🍊
A) Vitamin A
😎 Vitamin B12
C) Vitamin C
D) Vitamin D
27/11/2025
Received today
14/11/2025
06/11/2025
🧮 1. Multiply any number by 11 easily
Say you want to multiply 72 × 11.
👉 Add the digits: 7 + 2 = 9
👉 Place it in the middle: 792
✅ So, 72 × 11 = 792
(If the sum is >9, carry over the extra digit — e.g., 86 × 11 = 946)
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💡 2. Square numbers ending with 5
Example: 35²
Take the first digit(s): 3
Multiply by next higher number: 3 × 4 = 12
Then add 25 at the end → 1225 ✅
Works for any number ending in 5 (e.g., 65² = 4225).
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⚡ 3. Divisibility hacks
• Divisible by 3 → Sum of digits divisible by 3
• Divisible by 4 → Last two digits divisible by 4
• Divisible by 11 → (Sum of odd place digits − even place digits) divisible by 11
🤯 Fun Facts
1. Honey is the only food that never spoils — archaeologists found 3,000-year-old honey in Egypt that was still good to eat.
2. A cloud can weigh more than 1 million kilograms — they look light, but they’re really packed with water.
3. Octopuses have three hearts and blue blood — two hearts pump blood to the gills, one to the body.
4. Bananas are berries… but strawberries are not!
5. Your nose can remember 50,000+ smells — even years later.
6. The Earth is hit by lightning 100 times every second.
7. Butterflies can taste with their feet.
8. A day on Venus is longer than a year on Venus (it rotates very slowly).
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