The order of magnitude of 154 is

Options

A. 1
B. 2
C. 3
D. 4

Answer

To find the order of magnitude of the number 154, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Number**: We are given the number 154.

2. **Convert to Scientific Notation**: We need to express 154 in scientific notation. This means we want to write it in the form of \( a \times 10^n \), where \( a \) is a number between 1 and 10, and \( n \) is an integer.

3. **Express 154 in Scientific Notation**:
- We can write 154 as \( 1.54 \times 10^2 \).
- Here, 1.54 is the decimal number where the first digit is non-zero, and \( 10^2 \) indicates that we moved the decimal point two places to the right.

4. **Determine the Order of Magnitude**: The order of magnitude is determined by the exponent of 10 in the scientific notation. In this case, the exponent is 2.

5. **Conclusion**: Therefore, the order of magnitude of 154 is 2.

### Final Answer:
The order of magnitude of 154 is **2**.

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