Which expression represents the calculation subtract 1 from 7 . then divide by \( 3^{\prime \prime} \) ? (a) \( 7-1 \div 3 \) (b) \( 3 \div(7-1) \) (D \( (7-1) \div 3 \) (d) \( 7-(1 \div 3) \)

To perform the calculation: subtract 1 from 7, which is \( 7 - 1 \), and then divide the result by 3, you would first calculate \( 7 - 1 = 6 \), and then divide that by 3 to get \( 6 \div 3 \). This expression can be represented as \( (7 - 1) \div 3 \) - option (c). Now, let's talk about how this applies in real life. Imagine you're sharing 6 cookies equally among 3 friends. You would need to find out how many cookies each person would get. The expression \( (7-1) \div 3 \) corresponds perfectly to that scenario, as you'd take the total number of cookies after subtracting one for yourself! A common mistake when interpreting word problems like this is not paying attention to the order of operations. Many people might mistakenly take the operations as they come rather than structuring them according to the instructions given. For instance, someone could misread the problem and think they should divide 1 by 3 first, leading to incorrect calculations! Always take the time to clarify the order of operations - it makes all the difference!