To calculate the expression \((3.5 \times 10^7) + (7.1 \times 10^9)\), follow these steps:

### Step 1: Write the numbers in standard form.
\[
3.5 \times 10^7 = 35,000,000
\]
\[
7.1 \times 10^9 = 7,100,000,000
\]

### Step 2: Add the two values.
\[
35,000,000 + 7,100,000,000 = 7,135,000,000
\]

### Final Answer:
\[
(3.5 \times 10^7) + (7.1 \times 10^9) = 7.135 \times 10^9
\]

Would you like more details or have any questions?

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Here are some related questions:
1. How do you subtract numbers in scientific notation?
2. How can you multiply numbers in scientific notation?
3. How do you express large numbers in scientific notation?
4. What is the general rule for adding exponents?
5. What are the benefits of using scientific notation?

**Tip:** Always ensure that numbers are expressed with the same exponent when adding or subtracting them in scientific notation.

Learn how to add large numbers using scientific notation with the problem (3.5x10^7) + (7.1x10^9). This step-by-step solution demonstrates how to convert numbers to standard form and apply basic exponent rules. Ideal for students in Grades 9-10.

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