Question 1
What is the correct value of ?No clue? Show me the answer
Correct answer
Correct!
IncorrectStep-by-step walkthrough
Choose a solution method
Method #1Direct ApproachStep 1: Identify the operations present
The expression contains addition and multiplication. According to BEDMAS, multiplication must be performed before addition.
Step 2: Perform multiplication first
Step 3: Perform addition
Step 4: State the answer
The correct answer is 11. The common mistake is to read left to right and calculate first, then , but this violates BEDMAS.
Method #2Process of EliminationStep 1: Identify what the question is asking
We need to evaluate using the correct order of operations (BEDMAS).
Step 2: Eliminate 14
14 comes from incorrectly doing addition first: , then . This ignores the rule that multiplication comes before addition.
Step 3: Eliminate 10
10 has no clear logical path from this expression — it does not result from any standard misapplication of the operations here.
Step 4: Eliminate 24
24 might come from , which misreads the addition sign as multiplication. This is not valid.
Step 5: Select the correct answer
11 is correct: multiply first (), then add (), following BEDMAS correctly.
Question 2
Which acronym stands for the same set of rules as BEDMAS, just used in different countries?No clue? Show me the answer
Correct answer
Correct!
IncorrectStep-by-step walkthrough
Choose a solution method
Method #1Direct ApproachStep 1: Recall the relationship between BEDMAS and BODMAS
BEDMAS uses E for Exponents, while BODMAS uses O for Orders (powers and roots). Both refer to exactly the same mathematical concept and the same set of rules.
Step 2: Compare the two acronyms letter by letter
Brackets, Exponents/Orders, Division, Multiplication, Addition, Subtraction — every letter corresponds to the same operation.
Step 3: Select the correct answer
BODMAS is the correct answer — it is simply the version of the acronym used in certain countries, where 'Orders' replaces 'Exponents'.
Method #2Process of EliminationStep 1: Identify what is being asked
We need the acronym that represents the same rules as BEDMAS, just named differently in other countries.
Step 2: Eliminate PEMDAS
PEMDAS uses P for Parentheses and is used in the USA. While it covers the same operations, it is a third variation, not the one specifically paired with BEDMAS in these notes.
Step 3: Eliminate BIDMAS
BIDMAS uses I for Indices — this is yet another regional variant and is not the specific pair mentioned alongside BEDMAS.
Step 4: Eliminate OBEAMS
OBEAMS is not a recognised mathematical acronym at all.
Step 5: Select the correct answer
BODMAS is the correct paired acronym — it replaces 'Exponents' with 'Orders' but otherwise represents identical rules to BEDMAS.
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