Solved IB ACIO Question
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Q · Mathematical Operationsmedium · 45s
If + means –, – means +, × means ÷, ÷ means ×, find value of: 20 + 10 – 5 × 3 ÷ 2
TopicMathematical Operations
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Expression: 20 – 10 + 5 ÷ 3 × 2 ≈ 10 + 3.33 = 13.33 (rounded to 13).
Final Answer: Option A - 13