If a student write 'five thousand fifty' as '550'. It means

Options

A. concept of place value is not clear
B. does not have knowledge of numbers
C. does not have knowledge of Mathematics
D. does not know addition

Answer

To solve the question, we need to analyze what the student did when they wrote 'five thousand fifty' as '550'.

### Step 1: Understand the correct representation of 'five thousand fifty'.
- The correct numerical representation of 'five thousand fifty' is 5050. This can be broken down as:
- 5 in the thousands place (5000)
- 0 in the hundreds place (0)
- 5 in the tens place (50)
- 0 in the units place (0)

### Step 2: Analyze what the student wrote.
- The student wrote '550' instead of '5050'. This means they omitted the thousands place (the '5' in 5000) and incorrectly represented the number.

### Step 3: Identify the place values.
- In the number '550':
- 5 is in the hundreds place (500)
- 5 is in the tens place (50)
- 0 is in the units place (0)
- The thousands place (which should have been represented by the first '5' in 5050) is missing.

### Step 4: Conclusion about the student's understanding.
- Since the student wrote '550' instead of '5050', it indicates a misunderstanding of place values. They did not recognize that the '5' in 'five thousand fifty' corresponds to the thousands place.

### Final Answer:
The student’s writing of 'five thousand fifty' as '550' means that the concept of place value is not clear to them.

---