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Solve: 15 + 20 ÷ 5 × 2 - 8
15
20
18
16
15
Remember the order 'DMAS' (Division, Multiplication, Addition, Subtraction). Solve Division first, then Multiplication, then Addition, then Subtraction.
Expression provided: 15 + 20 ÷ 5 × 2 - 8
BODMAS=(Bracket,Of,Division,Multiplication,Addition,Subtraction)
Remember the order 'DMAS' (Division, Multiplication, Addition, Subtraction). Solve Division first, then Multiplication, then Addition, then Subtraction.
Students often solve addition before division or multiplication (i.e., 15 + 20 = 35), which violates the BODMAS precedence order.
Apply Division
Perform the division operation first as per the BODMAS rule: 20÷5=4.
15+4×2−8
Apply Multiplication
Perform the multiplication operation next: 4×2=8.
15+8−8
Perform Addition and Subtraction
Finally, perform addition and then subtraction: 15+8=23, then 23−8=15.
15+8−8=15
A is correct because applying the BODMAS order of operations results in a final value of 15.
This order of operations is foundational for solving complex algebraic equations and data interpretation problems where multiple operators are used.
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