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To solve this problem, we need to add the two values:

\[
0.18 \, \text{gal} + 1.564 \, \text{gal}
\]

1. First, add the values:

\[
0.18 + 1.564 = 1.744 \, \text{gal}
\]

2. Now, we need to round the answer to the correct precision. The first number (0.18 gal) has two decimal places, while the second number (1.564 gal) has three decimal places. When adding or subtracting, we round to the least number of decimal places, which is **2 decimal places** in this case.

Thus, the final answer, rounded to two decimal places, is:

\[
1.74 \, \text{gal}
\]

Would you like more details or have any questions?

Here are five related questions:
1. How do you determine which decimal place to round to in addition or subtraction?
2. What is the rule for significant figures in multiplication or division?
3. Can you explain how to round numbers if the third decimal is a 5?
4. How would the rounding change if both numbers had only one decimal place?
5. What if the question asked for the result without rounding?

**Tip:** When performing addition or subtraction, always round your final answer to match the number with the fewest decimal places.

Add or subtract as shown. Round your answer to the correct precision.
0.18 gal + 1.564 gal

Learn how to add 0.18 gal and 1.564 gal, followed by rounding to the correct precision. This math problem covers key concepts such as addition and rounding based on significant figures. Suitable for students in Grades 6-8.

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