Which is the largest two-digit number?

Which is the largest two-digit number?

• A. 90
• B. 99
• C. 98
• D. 100

Answer: (B)

The largest two-digit number is 99 because it is the highest quantity that can be represented with two digits in the decimal system. Two digits consist of a tens place and a units place, and for the tens place, the maximum digit is 9. Therefore, when the tens place is occupied by 9 and the units place can also be occupied by up to 9, the combination of both gives us 99. In contrast, 100, although a number greater than 99, is not a two-digit number; it is instead the smallest three-digit number. Thus, it doesn't qualify within the range we are considering for two-digit numbers. The other two-digit numbers, 90 and 98, are less than 99, making them smaller options. Therefore, 99 stands out as the maximum possible value within the two-digit format.

The largest two-digit number is 99 because it is the highest quantity that can be represented with two digits in the decimal system. Two digits consist of a tens place and a units place, and for the tens place, the maximum digit is 9. Therefore, when the tens place is occupied by 9 and the units place can also be occupied by up to 9, the combination of both gives us 99.

In contrast, 100, although a number greater than 99, is not a two-digit number; it is instead the smallest three-digit number. Thus, it doesn't qualify within the range we are considering for two-digit numbers. The other two-digit numbers, 90 and 98, are less than 99, making them smaller options. Therefore, 99 stands out as the maximum possible value within the two-digit format.