Learn on PengiPengi Math (Grade 4)Chapter 1: Place Value Fundamentals and Estimation

Lesson 4: Comparing Multi-Digit Numbers Place by Place

In this Grade 4 lesson from Pengi Math Chapter 1, students learn to compare multi-digit numbers by analyzing the value of digits place by place, starting from the greatest place value. They practice recording comparison results using the symbols greater than, equal to, and less than.

Section 1

Comparing Multi-Digit Numbers

Property

To compare two numbers, first check the number of digits. The number with more digits is greater. If they have the same number of digits, compare the digits from left to right, starting with the largest place value, until you find a place where the digits are different.

Examples

Section 2

Recording Multi-Digit Numbers Comparisons

Property

To record the result of a comparison between two numbers, $a$ and $b$ , we use the following symbols:

$a < b$ means " $a$ is less than $b$ ".
$a > b$ means " $a$ is greater than $b$ ".
$a = b$ means " $a$ is equal to $b$ ".

Examples

Lesson overview

Expand to review the lesson summary and core properties.

Expand

Section 1

Comparing Multi-Digit Numbers

Property

Examples

Section 2

Recording Multi-Digit Numbers Comparisons

Property

To record the result of a comparison between two numbers, $a$ and $b$ , we use the following symbols:

$a < b$ means " $a$ is less than $b$ ".
$a > b$ means " $a$ is greater than $b$ ".
$a = b$ means " $a$ is equal to $b$ ".