Solved IB ACIO Question
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Q · Mathematical Operationsmedium · 45s
Using operator substitution + to ÷, – to ×, × to –, ÷ to –, evaluate: 30 + 20 – 10 × 5 ÷ 2
TopicMathematical Operations
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
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Every step explained - no skipped algebra.
Expression: 30 ÷ 20 × 10 – 5 – 2. Calculate: 1.5 × 10 – 5 – 2 = 15 – 5 – 2 = 8.
Final Answer: Option A - 8