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The problem asks to evaluate \((7.9 \times 10^3) - (1.4 \times 10^3)\) and provide the answer in standard form.

### Step-by-step solution:

1. First, convert both terms from scientific notation into normal numbers:
   - \(7.9 \times 10^3 = 7900\)
   - \(1.4 \times 10^3 = 1400\)

2. Subtract the two values:
   \[
   7900 - 1400 = 6500
   \]

3. Convert the result back into scientific notation (standard form):
   - \(6500 = 6.5 \times 10^3\)

### Final answer:
\[
6.5 \times 10^3
\]

Would you like further details or have any questions?

Here are 5 related questions to expand your understanding:
1. How would you handle subtraction with numbers in different powers of 10?
2. Can you explain why \(6500\) is written as \(6.5 \times 10^3\)?
3. How can you convert numbers from standard form to normal notation and vice versa?
4. What would happen if the powers of 10 were not the same in the original terms?
5. How do you handle operations with scientific notation in multiplication or division?

**Tip**: When performing operations with scientific notation, always ensure that the powers of 10 are aligned before adding or subtracting!

Work out (7.9 × 10^3) − (1.4 × 10^3). Give your answer in standard form.

Learn how to subtract numbers in scientific notation, such as (7.9 × 10^3) − (1.4 × 10^3), with a detailed step-by-step solution. Suitable for Grades 6-8, this example demonstrates core concepts of subtraction and standard form conversion.

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