Calculate the Sum: 0.85 + 0.67 Decimal Addition Problem

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

• Step 1: Align the given decimal numbers by the decimal point.
• Step 2: Add the numbers from rightmost digit to leftmost, handling carrying if necessary.
• Step 3: Compare the computed answer with the provided choices.

Now, let's work through each step:

Step 1: Align the decimals:

$\begin{array}{c} \phantom{+} 0.85 \\ + 0.67 \\ \hline \end{array}$

Step 2: Begin adding from the rightmost side (hundredths place):

• Hundredths place: $5 + 7 = 12$. Write 2, carry over 1 to the tenths place.
• Tenths place: $8 + 6 = 14$. Including the carry over, $14 + 1 = 15$. Write 5, carry over 1 to the next whole number place (ones place).
• Ones place: $0 + 0 = 0$. Including the carry over, $0 + 1 = 1$. Write 1.

The calculated sum is 1.52.

Step 3: Compare with answer choices:

• The options are: 1.52, 0.152, 1.052, and 1.152.
• The calculated sum of 1.52 matches the choice labeled 1: 1.52.

Therefore, the solution to the problem is $1.52$.