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Evaluate: 144 ÷ 12 × 2 + 5 - 3
26
24
22
28
26
Evaluate multiplication and division from left to right, followed by addition and subtraction from left to right.
The given arithmetic expression is 144÷12×2+5−3
Order of Operations: BODMAS / PEMDAS
Evaluate multiplication and division from left to right, followed by addition and subtraction from left to right.
Students often mistakenly perform multiplication before division or apply addition before multiplication.
Step 1: Understand the Order of Operations
Recall the BODMAS rule: Brackets, Orders, Division and Multiplication (from left to right), Addition and Subtraction (from left to right).
Rule: BODMAS
Step 2: Perform Division
First, evaluate the division part from left to right: 144÷12=12.
144÷12=12
Step 3: Perform Multiplication
Next, multiply the result by 2: 12×2=24.
12×2=24
Step 4: Perform Addition and Subtraction
Finally, perform addition and subtraction from left to right: 24+5−3=29−3=26.
24+5−3=26
A is correct because the evaluated result of the expression is 26.
Understanding the precise order of operations prevents severe calculation errors in algebra and data interpretation problems.
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