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Evaluate: 120 ├╖ 5 ├Ч 2 + 8
56
48
64
52
56
Always execute multiplication and division strictly from left to right before performing addition and subtraction.
The given arithmetic expression to evaluate is 120 ├╖ 5 ├Ч 2 + 8.
BODMAS:┬аBracketsтЖТOrdersтЖТDivision/Multiplication┬а(Left┬аto┬аRight)тЖТAddition/Subtraction┬а(Left┬аto┬аRight)
Always execute multiplication and division strictly from left to right before performing addition and subtraction.
Students often perform multiplication before division or carry out addition before multiplication/division, violating the left-to-right priority rule.
Identify Order of Operations
We need to evaluate the expression following the standard BODMAS rule where division and multiplication have equal precedence and are evaluated from left to right.
120├╖5├Ч2+8
Perform Division
Start from the left and perform the division operation: 120├╖5=24.
120├╖5=24
Perform Multiplication
Next, multiply the result by 2: 24├Ч2=48.
24├Ч2=48
Perform Addition
Finally, add 8 to the product: 48+8=56.
48+8=56
A is correct because evaluating 120├╖5├Ч2+8 step-by-step using the BODMAS rule yields 56.
Mastering the order of operations is foundational for solving algebraic equations and simplifying complex numerical data in quantitative aptitude tests.
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