Fourth Grade Math: Rounding Numbers

When you're in fourth grade, one of the math skills you'll practice is rounding larger whole numbers to different place values. Read on for a review of place values and tips for rounding different types of numbers!

Find available tutors

Rounding in Fourth Grade

Place Values

Each digit in a whole number has a place value, and the farther to the left in a number the digit is, the larger its place value. The first digit on the right side of a whole number is in the ones place, and it tells you how many ones the number has. For instance, in the number 5,678, the eight is in the ones place.

The seven is in the tens place, which means that 5,678 has seven tens. The six in the hundreds place tells you that 5,678 has six hundreds, and the five, which is in the thousands place, represents five thousands. The number can be broken down like this:

5,000 + 600 + 70 + 8

Each of these individual numbers can be broken down even further. For instance, 5,000 = 1,000 + 1,000 + 1,000 + 1,000 + 1,000 and 70 = 10 + 10 + 10 + 10 + 10 + 10 + 10. Thus, place value tells you how many of a particular number a larger number contains.

Rounding

Now that you're clear on how place values work, you can use this knowledge to round numbers. First, identify the place you're rounding to. For example, if you're rounding 5,678 to the nearest thousand, the answer will be different than if you're rounding it to the nearest ten.

Once you've found the digit you're rounding to (let's say it's the hundreds digit), you'll need to look at the next digit to its right (the tens digit). If this digit is five or higher, you'll be rounding up. This means you'll add one to the hundreds digit, and change all of the numbers after it (to the right) to zero. For instance, if you rounded 4,567 to the nearest hundred, the answer would be 4,600.

If the tens digit is four or lower, you'll round the hundreds digit down, which means you'll keep it the same and change the numbers after it to zeros. For example, if you round 1,234 to the nearest hundred, the answer will be 1,200.

Practice Problems

Round the following numbers to the place specified in each question.

  1. Round 432 to the nearest ten.
  2. Round 1,876 to the nearest hundred.
  3. Round 4,321 to the nearest thousand.

Answer Key

  1. Since two is less than five, you'll round 432 down to 430.
  2. Since seven is equal to five or greater, you'll round 1,876 up to 1,900.
  3. The number three is less than five, so you'll round 4,321 down to 4,000.
Did you find this useful? If so, please let others know!

Other Articles You May Be Interested In

  • More Blog Articles
    Elementary Concepts: Fourth Grade Reading

    Parents often wonder if their fourth grade child is reading at a level acceptable for their age. This article offers a guide to help parents of fourth grade children determine if their children are on track with their reading development.

  • More Blog Articles
    Elementary Concepts: Fourth Grade Math

    Parents often wonder if their child is sufficiently prepared to advance to the next grade level. This article outlines the basic math skills your child should have acquired by the end of their fourth grade year.

We Found 7 Tutors You Might Be Interested In

Huntington Learning

  • What Huntington Learning offers:
  • Online and in-center tutoring
  • One on one tutoring
  • Every Huntington tutor is certified and trained extensively on the most effective teaching methods
In-Center and Online

K12

  • What K12 offers:
  • Online tutoring
  • Has a strong and effective partnership with public and private schools
  • AdvancED-accredited corporation meeting the highest standards of educational management
Online Only

Kaplan Kids

  • What Kaplan Kids offers:
  • Online tutoring
  • Customized learning plans
  • Real-Time Progress Reports track your child's progress
Online Only

Kumon

  • What Kumon offers:
  • In-center tutoring
  • Individualized programs for your child
  • Helps your child develop the skills and study habits needed to improve their academic performance
In-Center and Online

Sylvan Learning

  • What Sylvan Learning offers:
  • Online and in-center tutoring
  • Sylvan tutors are certified teachers who provide personalized instruction
  • Regular assessment and progress reports
In-Home, In-Center and Online

Tutor Doctor

  • What Tutor Doctor offers:
  • In-Home tutoring
  • One on one attention by the tutor
  • Develops personlized programs by working with your child's existing homework
In-Home Only

TutorVista

  • What TutorVista offers:
  • Online tutoring
  • Student works one-on-one with a professional tutor
  • Using the virtual whiteboard workspace to share problems, solutions and explanations
Online Only

Help Your Child Succeed

Our Commitment to You

  • Free Help from Teachers

  • Free Learning Materials

  • Helping Disadvantaged Youth