Solve the Decimal Equation: Finding the Number in 0.1 × ? = 10

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

• Step 1: Write down the given equation $0.1 \times ? = 10$.
• Step 2: Solve the equation by isolating $'?'$ using division. We divide both sides of the equation by $0.1$.

Let's work through these steps in detail:
Step 1: We have $0.1 \times ? = 10$.
Step 2: To isolate $'?'$, divide both sides of the equation by $0.1$. This gives us $? = \frac{10}{0.1}$.
Calculating this division: $? = \frac{10}{0.1} = 100$.

Therefore, the solution to this problem is $\boxdot 100$, confirming the equivalence $0.1 \times 100 = 10$.