Compare, Order & Round

Read large whole numbers with precision. Compare them using place-value reasoning, arrange a set from least to greatest, and round to any chosen place without guessing — with the clarity of an elite math curriculum.

View Curriculum

4 Lessons • Live Feedback • Grade 4 Aligned

Reasoning Console

Number Mission Deck

Live

Compare numbers

4,826,150

4,826,105

Choose the symbol that makes the statement true.

Order numbers • least → greatest

Select the smallest number first.

Round to:

4,826,150

Original

4,826,150

Rounded

4,826,000

Why? Look at the digit immediately to the right of the place you are rounding to.

Place-value reasoning engine

Core rule

Compare digits from left to right.

The first place where two numbers have different digits decides which number is greater.

Streak Bonus

0 / 5 streak

Score

Streak

Mission

SELECT A LESSON

Build Number Reasoning

Each card opens a focused mission in the console above. Move from direct comparison to ordering, rounding, and mathematical explanation.

4 Interactive Lessons

LESSON 01

Compare Numbers

Use place value from left to right to decide whether one whole number is less than, equal to, or greater than another.

Core Skill

Launch

LESSON 02

Order Numbers

Arrange a set of large whole numbers from least to greatest by comparing their place values systematically.

Applied Skill

Launch

LESSON 03

Round Whole Numbers

Round a number to a selected place by identifying the deciding digit and applying the correct rounding rule.

Core Skill

Launch

LESSON 04

Reason & Explain

Explain why a number is greater, why an order is correct, or why a rounded result changes the way it does.

Mastery

Launch