Comparing Numbers ยท Free Worksheets (Grade 1)
Practice comparing numbers (Grade 1) with free printable PDF worksheets. 4 pre-packaged classroom sets with 100% verified step-by-step answer keys, plus an unlimited live customizer for teachers and homeschoolers.
Explore Interactive Tools for Comparing Numbers (<, >, = within 20) Worksheets
Master this math concept across all PanMaths learning verticals:
Mastering Comparing Numbers: Core Concepts & Mental Models
Comparing numbers helps children build essential place value reasoning and relative magnitude understanding. Instead of blind guessing, first graders learn to compare the tens digit first, then look at the ones digit, guided by visual analogies like the Hungry Alligator and base-10 block balances.
๐ก Essential Strategies for Comparing Numbers
๐ The Hungry Alligator Law
The alligator mouth always opens toward the bigger, juicier number (e.g. 17 > 12). If both sides have the exact same value, the mouth snaps into two equal bars (=).
๐ Compare Tens First, Then Ones
Always check the tens place first! 1 ten is greater than 0 tens (14 > 8). If the tens are equal (15 vs 18), compare the ones digits (8 > 5, so 18 > 15).
โ๏ธ The Number Line Distance Rule
On a number line from 0 to 20, numbers further to the right are always greater. Numbers further to the left are always smaller.
๐ Key Mathematical Vocabulary
Greater Than (>)
The symbol showing that the number on the left is larger than the number on the right (e.g., 18 > 11).
Less Than (<)
The symbol showing that the number on the left is smaller than the number on the right (e.g., 9 < 15).
Equal To (=)
The symbol showing that both quantities have the exact same value (e.g., 16 = 16).
Tens Digit
The digit in the tens place showing how many groups of 10 exist in a number (e.g., in 14, the tens digit is 1).
Ones Digit
The digit in the ones place showing the loose remaining single units (e.g., in 14, the ones digit is 4).
๐ฏ 4 Differentiated Classroom Sets Included
Set A: Single Digits & Small Teens (10 Problems)
Compare numbers 0 to 12 with clear visual spacing and equal sign practice.
Set B: Teen Numbers 10 to 20 (10 Problems)
Compare pairs of teen numbers (10โ20) by inspecting the ones digits.
Set C: Place Value Contrast Traps (8 Problems)
Contrasting pairs like 16 vs 6, 20 vs 2, and 19 vs 18 to build place value mastery.
Set D: Rapid-Fire Speed Sprint (15 Problems)
15 rapid comparison drills across the full 0โ20 range to cement instant symbol automaticity.
โ Frequently Asked Questions
How do you teach greater than and less than to 1st graders?
Use the 'Hungry Alligator' trick: the alligator is always hungry and opens its mouth toward the larger number (e.g., 16 > 9). When both numbers are equal, the mouth shuts flat into the equal sign (=).
How do students compare numbers with the same tens digit?
When comparing two teen numbers (like 14 and 19), both numbers have 1 ten. Students look at the ones place: 4 is less than 9, so 14 < 19.
What is the most common mistake first graders make when comparing numbers?
Looking only at the ones digit! For example, seeing 6 and 16, a child might think 6 is equal or bigger because of the digit 6, forgetting that 16 has a full ten (10 + 6).
Do PanMaths comparing worksheets include answer keys?
Yes! Every printable worksheet includes a Page 2 answer key showing the correct symbol (>, <, =) and place value reasoning for instant self-checking and grading.