Question

for problems 1–4, evaluate. 1. $90 - 52.3$

Explanation:

Step1: Identify the operation order

We need to follow the order of operations (PEMDAS/BODMAS). First, handle the multiplication: \(52.3\) (assuming it's a typo and should be \(52.3\) or maybe \(5\times2.3\)? Wait, the original is \(90 - 52.3\)? Wait, the image shows \(90 - 52.3\)? Wait, no, the text is "90 - 52.3"? Wait, maybe it's \(90 - 5\times2.3\)? Wait, the user's image: "1. 90 - 52.3" – maybe a typo, but assuming it's \(90 - 52.3\) (subtraction of a decimal). Wait, or maybe \(90 - 5\times2.3\)? Wait, the original problem: "90 - 52.3" – let's check. If it's \(90 - 52.3\), then:

Step2: Perform the subtraction

\(90 - 52.3 = 37.7\)

Wait, but maybe the problem is \(90 - 5\times2.3\)? Let's re-express. If it's \(90 - 5\times2.3\), then:

Step1: Multiply first

\(5\times2.3 = 11.5\)

Step2: Subtract

\(90 - 11.5 = 78.5\)

But the image shows "90 - 52.3" (maybe a typo in the problem, like 5×2.3 or 52.3). Assuming the problem is \(90 - 52.3\) (decimal subtraction):

Step1: Align decimals

Write \(90\) as \(90.0\) to align with \(52.3\).

Step2: Subtract

\(90.0 - 52.3 = 37.7\)

Answer:

\(37.7\) (or if it's \(90 - 5\times2.3 = 78.5\), but based on the image, likely \(90 - 52.3 = 37.7\))