Place value and Face value
Face value of a digit is the digit itself whereas Place value can be termed as the location of the digit in the numeral.
The value of a place in the place value chart is 10 times the value of the place just to its right.
Expanded form
It is the sum of the place-values of all its digits. The expanded form of a number helps us to understand the number of ones in a number.
Method of Reading Numbers :
Divide the numbers into groups and then read from the left
Successor :
The number just after the given Number. Add 1 to get the successor of a number.
For ex : 5 is the successor of 4
Pre-Decessor :
The number just before the given number. Subtract 1 from a number to get its pre-decessor.
Ex : 3 is the pre-decessor of 4.
Comparision of numbers :
In both > and < signs, the closed side points towards the smaller number.