-Students will be introduced with the fact: a) To build the greatest number write the digits in descending order – biggest to smallest.
b) To build the smallest number , write the digits in ascending order- smallest to biggest.
-Students will be explained how to build a greatest and smallest 4-digit number from the given digits. Example- 2,1,6,4= Greatest  number- 6,421 Smallest number- 1,246.
-Students will be explained about the need of estimating numbers or rounding off the numbers(little more or little less).
-Students will be explained how to round off the number to nearest 10 through facts along with examples. Example: If the Ones digit is 4 or less, round to the smaller 10 and if the Ones digit is 5 or more, round to the bigger 10. 
- Students will be explained about what are ordinal numbers(refers to a number indicating the position in a series) and where do we use these numbers. 
-Students will be able to write the ordinal numbers upto 40. 
