Thinking Summary · Step 1
Mastered[object Object]
[Discovery] Evaluate (25 + 5) × 4 bottom-up: do the high-precedence sub-expression first, then the rest.
Step 1
Active Step[Discovery] Evaluate (25 + 5) × 4 bottom-up: do the high-precedence sub-expression first, then the rest.
Order of Operations Tree
Evaluate (25 + 5) × 4 bottom-up using PEMDAS.