The biggest 2-digit number divisible by 10 is 90.
A number is divisible by 10 if it is a multiple of 10, meaning it can be divided by 10 with no remainder. According to the reference, a multiple of 10 is also divisible by both 5 and 10. We can list all 2-digit numbers divisible by 10.
Two-Digit Multiples of 10
Here's a list of all two-digit multiples of 10:
- 10
- 20
- 30
- 40
- 50
- 60
- 70
- 80
- 90
As shown above, 90 is the largest number in the list.
Therefore, based on the reference and the list above, 90 is the biggest 2-digit number divisible by 10.