Home
Math by Grades Pre-K
Kindergarten
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
Grade 6
Grades 7 and 8
Grades 9 and 10
Grades 11 and 12
Math by Topics Arithmetic
Algebra
Geometry
Math Word Problems
Trigonometry
Statistics
Probability
PreCalculus
Calculus
Set Theory
Matrices
Vectors
Math Worksheets Math Worksheets
Interactive Zone
Math in Video Lessons Basic Algebra
Intermediate Algebra
College Algebra
High School Geometry
College Calculus
Linear Algebra
Engineering Math
Singapore Math
Math for Specific Tests SAT Math
ACT Math
GMAT Math
High School, Regents
California Standards
GCSE Maths
A Level Maths
Math Fun and Games Math Trivia
Math Games
Fun Games
Mousehunt Guide
Exam Preparation SAT Preparation
ACT Preparation
GMAT Preparation
Science Biology
Chemistry
Science Projects
High School Biology
High School Chemistry
High School Physics
GCSE Biology
Others English Help
ESL, IELTS, TOEFL
Programming
Animal Facts
Tutoring Services
What's New

 

Rounding Decimals

In this lesson, we will look at rounding decimals.

 

 

The rule for rounding decimals is the same as the rule for whole numbers.
Step 1: Decide on the place the number is to be rounded to.
Step 2: Look at the first digit to the right of that place.
Step 3: If the digit is equal to or more than 5, round up
Step 4: If the digit is less than 5, round down.
Step 5: We may drop the zeros.

 

 

Example:

Round 74.862 to the nearest tenths

Solution:

The digit at the tenth place is 8.
The digit to the right of 8 is 6.
Since 6 > 5 we round up.

74.862 rounded to the nearest tenths is 74.9

 

 

Example:

Round 74.862 to the nearest hundredths

Solution:

The digit at the hundredth place is 6.
The digit to the right of 6 is 2.
Since 2 < 5 we round down.

74.862 rounded to the nearest hundredths is 74.86

Example:

Round 74.862 to the nearest whole number

Solution:

The digit at the ones place is 4.
The digit to the right of 4 is 8.
Since 8 > 5 we round up.

74.862 rounded to the nearest whole number is 75

 

 

This two-part video shows more examples of how to round decimals.

 

 

 

Custom Search

 

We welcome your feedback, comments and questions about this site - please submit your feedback via our Feedback page.

 

© Copyright 2005, 2009 - onlinemathlearning.com
Embedded content, if any, are copyrights of their respective owners.

 


Useful Links:
Exponents - Math.com
 

 

Custom Search