Canadian Forces Aptitude Test (CFAT) Practice

What is the result of the calculation 0.0625 - 5 - 0.125 × 3 + 0.099 - 0.011?

1. 9.125

2. 8.6375

3. 9.6375

4. 8.125

The correct answer is: 8.6375

To determine the correct answer, it's important to follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)). First, we'll need to handle the multiplication in the equation: 0.125 × 3 equals 0.375. Now, substituting this value back into the original equation gives us: 0.0625 - 5 - 0.375 + 0.099 - 0.011. Next, we perform the calculations step by step: 1. Start with 0.0625 - 5, which equals -4.9375. 2. Then, take that result and subtract 0.375: -4.9375 - 0.375 equals -5.3125. 3. Continue by adding 0.099 to this result: -5.3125 + 0.099 equals -5.2135. 4. Finally, subtract 0.011: -5.2135 - 0.011 equals -5.2245. This results in a decimal that is negative. Revisiting the calculations step by step shows