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Evaluate: 25 + 5 * 4 - 12 / 3
41
39
45
37
41
Perform Division and Multiplication first from left to right as a single block before addressing addition and subtraction to save time.
An arithmetic expression consisting of addition, multiplication, subtraction, and division operations: 25 + 5 * 4 - 12 / 3
BODMAS=Brackets,Orders,Division,Multiplication,Addition,Subtraction
Perform Division and Multiplication first from left to right as a single block before addressing addition and subtraction to save time.
Students often solve from left to right sequentially (ignoring operator precedence), which leads to an incorrect result of 11.33 or 100 instead of 41.
Apply Division
According to the BODMAS rule, perform the division operation first: 12÷3=4.
25+5×4−4
Apply Multiplication
Next, perform the multiplication operation: 5×4=20.
25+20−4
Addition and Subtraction
Finally, perform addition and then subtraction in sequence: 25+20=45, then 45−4=41.
45−4=41
A is correct because applying the BODMAS sequence results in 41.
This order of operations rule is essential for solving complex algebraic expressions and physics equations where formulas require specific calculation sequences.
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