Visual Grid Model: Subtracting 0.3 from a Shaded Decimal Representation

To solve this problem, we'll follow these steps:

• Step 1: Identify the value represented by the graphical box. In this context, we assume it likely represents the number $2$.
• Step 2: Subtract $0.3$ from this number, with care for decimal place alignment.
• Step 3: Calculate the result of the subtraction: $2 - 0.3 = 1.7$.

Now, let's work through the detailed steps:
Step 1: Assume and verify within graphical representation contexts that the initial number is likely $2$.
Step 2: Align decimals and perform the subtraction operation:
$2.0 - 0.3$: Ensure placeholder zero for two decimal spaces.
Step 3: Subtraction takes place across decimals: $2.0 - 0.3 = 1.7$.

Therefore, the solution to the problem is $1.7$, which matches choice 1.