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To solve \(2.3 \cdot 10^8 + 4.7 \cdot 10^7\) and express the answer in scientific notation, we should follow these steps:

### Step 1: Adjust the Powers of 10
The terms \(2.3 \cdot 10^8\) and \(4.7 \cdot 10^7\) have different powers of 10, so we need to express them with the same power. It’s easier to rewrite \(4.7 \cdot 10^7\) in terms of \(10^8\):

\[
4.7 \cdot 10^7 = 0.47 \cdot 10^8
\]

Now we can rewrite the expression as:

\[
2.3 \cdot 10^8 + 0.47 \cdot 10^8
\]

### Step 2: Add the Coefficients
Now that both terms are expressed with \(10^8\), we can add their coefficients:

\[
2.3 + 0.47 = 2.77
\]

So, the result is:

\[
2.77 \cdot 10^8
\]

### Final Answer
\[
2.3 \cdot 10^8 + 4.7 \cdot 10^7 = 2.77 \cdot 10^8
\]

Would you like further details, or do you have any questions?

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Here are five related questions for practice:
1. How would you subtract \(4.7 \cdot 10^7\) from \(2.3 \cdot 10^8\) in scientific notation?
2. What is the result of \(3.6 \cdot 10^5 + 2.1 \cdot 10^4\) in scientific notation?
3. How do you convert \(4.5 \cdot 10^6\) into standard form?
4. If you multiply \(2.3 \cdot 10^8\) by \(4.7 \cdot 10^7\), what would the answer be?
5. How do you handle addition when two terms have different exponents in scientific notation?

**Tip:** When adding or subtracting in scientific notation, always adjust terms to the same power of ten before combining them.

Express your answer in scientific notation. 2.3 * 10^8 + 4.7 * 10^7 =

Learn how to add 2.3 * 10^8 and 4.7 * 10^7 in scientific notation. This solution walks through adjusting terms to a common exponent and combining coefficients for a final answer in scientific notation. Suitable for students in Grades 8-10.

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