Let's calculate:
Expression: 10 - 10 × 10 + 10
👉 According to the priority rule (multiply and divide first, add and subtract later):
1️⃣ Calculate the multiplication part:
10 × 10 = 100
2️⃣ Substitute into the expression:
10 - 100 + 10
3️⃣ Do it from left to right:
10 - 100 = -90
-90 + 10 = -80
✅ Answer: -80