28
28
This cannot be answered. This will have to be written to where it can be understood.
Not a lot. They're both prime numbers. A factor that is prime is used to make other numbers.
The smallest two digit number is 00 (a number used as a wire gauge) and the largest is 99, so the difference between the largest and smallest 2-digits numbers is 99 (99 - 00)
65
28
16
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
5 is a factor of any whole number ending in 5; it is also a factor of any whole number of 2 or more digits ending in zero.
This cannot be answered. This will have to be written to where it can be understood.
Digits is how many numbers you have in a number. If you have the number 4 it has one digit if you have the number 20 it has two digits and if you have the number 558 it has three digits. So basically in the number 1085 it has 4 digits because there is 4 numbers in it, the numbers are 1,0,8 and 5. Hoped you understand.
36
65
When multiplying numbers with significant digits, count the total number of significant digits in each number. Multiply the numbers as usual, but round the final answer to match the least number of significant digits in the original numbers.
Not a lot. They're both prime numbers. A factor that is prime is used to make other numbers.
9 on apex
A number is divisible by 9 if all the digits add up to 9 or are a factor of. IF the digits add up to 9 (or a factor of 9), they will automatically be a factor of 3.Yes. Test a couple numbers divisible by 9--27, 81--and they are all divisible by 3.