More on Numbers Systems and Rounding?

5th Grade, Module 6: More on Number Systems and Rounding?

More about Numbers 

 

There exist other number systems as well, apart from Hindu-Arabic (the one we use in general). One such commonly used number system is the Roman numeral system. In this chapter, we will learn to 

  • read, write and convert numbers from Hindu-Arabic to Roman numerals and vice-versa. 

  • show how the Roman numeration system is built from basic numerals for 1,5, 10 and 50 

We will also learn the concept of estimating numbers by rounding off. After reading this topic we will be able to: 

     1. approximate by rounding off to nearest ten, hundred, thousand; 
     2. estimate quantities of given objects 

 


    • Related Articles

    • What are Roman Numerals?

      Roman Numerals Roman Numerals & How They Began Historians believe Roman Numerals began as a tally system. Shepherds on the hills and in the fields around Rome would cut marks into sticks to keep track of how many sheep or goats were in their care. ...

    • How Do You Round Off Numbers?

      Rounding off Numbers Rounding off a number to nearest tens When we round off the units place it is called estimating a number to nearest tens. If the number at units place is below 5, it is rounded off to 0 i.e. the lower tens. If the number at units ...

    • What are the Place Value Systems for India and the International Number System?

      Introduction: Place Value System, India and International According to our number system, the value of a digit depends upon the place it holds in the number. The TRUE and ACTUAL value of a number depends on two factors: (1) Face value of a digit in a ...

    • 5th Grade, Module 1: What are Large Numbers?

      Large Numbers How far is moon from earth? What is the speed of light? How many cells are there in the human body? The answers to these questions are numbers that go way beyond 10’s or 100’s. This chapter gives us an idea about numbers beyond 1000. In ...

    • What is the Place Value System?

      Introduction: Place Value System, India and International According to our number system, the value of a digitdepends upon the place it holds in the number. The TRUE and ACTUAL value of a number depends on two factors: Face value of a digit in a ...