$1 \frac{1}{3} - 1 \frac{1}{9} + 1 \frac{1}{6} = ?$

The sum of the digits of a two-digit number is $15$ and the difference between the digits is $3$. What is the two-digit number?

The sum of three numbers is $2$. The $1^{\text{st}}$ number is $\frac{1}{2}$ times the $2^{\text{nd}}$ number and the $3^{\text{rd}}$ number is $\frac{1}{4}$ times the $2^{\text{nd}}$ number. The $2^{\text{nd}}$ number is

The sum of three numbers is $264$. If the first number is twice the second and the third number is one-third of the first,then the second number is:

$A$ 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:

$7372 \times 7372 + 7372 \times 628 = ?$