Solve Decimal Subtraction: 0.4 - 0.2 Step-by-Step

To solve this problem, let's perform the following steps:

• Step 1: Write the numbers vertically, aligning the decimal points.
• Step 2: Subtract as you would with whole numbers, starting from the right.
• Step 3: Bring down the decimal point in the same position below the numbers being subtracted.

Now, applying these steps to $0.4 - 0.2$:

• 0.4
• − 0.2

Subtract the numbers in the tenths place: $4 - 2 = 2$.

So, the result of $0.4 - 0.2$ is $0.2$.

In this problem, the correct answer from the provided choices is 0.2.