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 place is greater than or equal to 5, it is rounded off to 10.
Examples
(i) 88 is rounded off to the nearest ten as 90
(ii) 34 is rounded off to the nearest ten as 30
(iii) 12 is rounded off to the nearest ten as 10
Rounding Chart for Nearest Tens
Rounding off a number to nearest hundreds
When we round off the tens place it is called estimating a number to nearest hundreds.
If the number at tens place is below 5, it is rounded off to 0.
If the number at tens place is greater than or equal to 5, it is rounded off to 100.
Examples –
(i) 321 is rounded off to the nearest hundred as 300
(ii) 579 is rounded off to the nearest hundred as 600
(iii) 452 is rounded off to the nearest hundred as 500
Rounding Chart for Nearest Hundreds
Related Articles
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 ...What is the Addition of Large Numbers?
Addition of Large Numbers Addition is one of the four basic operations of arithmetic, the others being subtraction, multiplication and division. Till now we have read addition of numbers which are very small and could be added just by counting. For ...What is the Multiplication of Large Numbers?
Multiplication of Large Numbers Multiplication of two numbers is nothing but repeated addition. It is equivalent to adding one of the numbers as many times as the value of the other. Examples- 7 X 5 = 7 + 7 + 7 + 7 + 7 = 35 9 X 3 = 9 + 9 + 9 = 27 ...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 ...How do you Divide Large Numbers?
Division of Large Numbers Division of two numbers can be treated as repeated subtraction. It is subtracting the smaller number from the greater number repeatedly till you reach zero or get a remainder. Examples- (a) 20 ÷ 4 = 5 20 – 4 – 4 – 4 – 4 – 4 ...