Answer the following question.

In the number $637$, the face value of $3$ is $30$. 

Write the number name of the following.

$31$

Write the number name of the following.

$55$

Write the number name of the following.

$$$98$

The expanded form of $703$ is $700+3$.

Answer the following questions.

What is $7$ tens less than $700$?

_____

Answer the following questions.

Round off the number $68$ to the nearest ten.

_____

Ravi makes a pattern with $7$, numbers. The last $4$, numbers in this pattern are, $185, 175, 165, 155$. What are the first three numbers in the pattern?