$1002 \div 49 \times 99 - 1299 = ?$

The sum of four numbers is $64.$ If you add $3$ to the first number,$3$ is subtracted from the second number,the third is multiplied by $3,$ and the fourth is divided by $3,$ then all the results are equal. What is the difference between the largest and the smallest of the original numbers?

$A$ number consists of two digits such that the digit in the ten's place is less by $2$ than the digit in the unit's place. Three times the number added to $\frac{6}{7}$ times the number obtained by reversing the digits equals $108$. The sum of the digits in the number is:

How many positive factors of $36$ are there?

The sum of two numbers is $22$. Five times one number is equal to $6$ times the other. The bigger of the two numbers is

How many numbers up to $200$ are divisible by both $2$ and $3$?