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Simplify: 18 + 2 × (15 ÷ 3) - 4
24
28
20
22
24
Directly evaluate the bracket first, then perform division/multiplication from left to right, followed by addition and subtraction.
Expression: 18 + 2 * (15 / 3) - 4
BODMAS Rule: Brackets→Of→Division→Multiplication→Addition→Subtraction
Directly evaluate the bracket first, then perform division/multiplication from left to right, followed by addition and subtraction.
Performing addition before multiplication or neglecting the order of operations inside the bracket.
Step 1: Simplify the Brackets
According to the BODMAS rule, evaluate the expression inside the parentheses first: 15÷3=5.
15÷3=5
Step 2: Perform Multiplication
Substitute the bracket value back and perform the multiplication: 2×5=10.
2×5=10
Step 3: Perform Addition and Subtraction
Rewrite the expression with the evaluated term: 18+10−4. Now perform addition and subtraction from left to right: 28−4=24.
18+10−4=24
A is correct because the evaluated result of the expression using the BODMAS rule is 24.
Order of operations is fundamental for simplifying complex algebraic expressions and solving data interpretation questions accurately in competitive exams.
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