Can you find ∛13,824 without a calculator? 🤯

🔥 The trick

13 | 824 — split the number into two parts.

🎯 Step 1: check the last digit

824 ends in 4, so the answer ends in 4.

Quick memory hack for the last digit:

• 0, 1, 4, 5, 6, 9 → stay the same
• 2 ↔ 8
• 3 ↔ 7

🧠 Step 2: look at 13

Which cube fits without going over?

• 2³ = 8 ✅
• 3³ = 27 ❌

So the first digit is 2.

🚀 Step 3: put them together

2 | 4 → 24

🎉 ∛13,824 = 24

One split. One tiny hack. One answer — and a real feel for how numbers work. That number sense is exactly what we build at Brainova.