What is the correct method of stating 10,500 feet MSL to ATC?

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Multiple Choice

What is the correct method of stating 10,500 feet MSL to ATC?

Explanation:
When communicating altitudes to ATC, read the digits clearly so the exact value is unambiguous. For numbers in the thousands, you say each digit of the thousands part separately, then tell the hundreds (or tens) part. So 10,500 feet means the thousands portion is 10, spoken as digits, and the hundreds portion is 500. Therefore you say: one zero thousand, five hundred feet. This makes it crystal clear you’re at 10,500 feet MSL and avoids confusion that could come from saying “ten thousand five hundred” in a fast or noisy transmission. The other options either misstate the value (1,500 or 150) or don’t present the thousands portion in a way that guarantees exactness, which is why they aren’t appropriate for ATC communication.

When communicating altitudes to ATC, read the digits clearly so the exact value is unambiguous. For numbers in the thousands, you say each digit of the thousands part separately, then tell the hundreds (or tens) part. So 10,500 feet means the thousands portion is 10, spoken as digits, and the hundreds portion is 500.

Therefore you say: one zero thousand, five hundred feet. This makes it crystal clear you’re at 10,500 feet MSL and avoids confusion that could come from saying “ten thousand five hundred” in a fast or noisy transmission.

The other options either misstate the value (1,500 or 150) or don’t present the thousands portion in a way that guarantees exactness, which is why they aren’t appropriate for ATC communication.

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