# Teaching 4.NBT.A.2 – Read & Write Multi-Digit Whole Numbers Using Numerals, Number Names & Expanded Form & Compare Two Multi-Digit Numbers

## Number & Operations in Base Ten – 4th Grade

#### Generalize place value understanding for multi-digit whole numbers.

CCSS.Math.Content.4.NBT.A.2
Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

Teacher Notes
The teacher needs to understand how the value of a digit can help students compare numbers.  Knowing the relationship between two numbers helps students to organize, classify, and interpret numbers and data, and thus it makes it easier to compare numbers and problem solve.

Student Knowledge Goals
I know place value positions to the millions place.I can tell the value of a digit in a given number up to one million.I understand and can correctly read the symbols <, >, and =.
I can compare two numbers up to one million.
I can use the symbols <, >, and = to record the correct relationship between two numbers up to one million.I can read whole numbers up to one million in base-ten numerals, expanded, and word form.I can write whole numbers up to one million in base-ten numerals, expanded, and word form.

Vocabulary
equal, =
expanded form
greater than, >
less than, <
numeral
place value positions (ten thousands, millions, etc.)

Lessons
Engage NY Module 1 A-3 – Name numbers within 1 million by building understanding of the place value chart and placement of commas for naming base thousand units.
Engage NY Module 1 A-4 – Read and write multi-digit numbers using base ten numerals, number names, and expanded form.
Engage NY Module 1 B-5 – Compare numbers based on meanings of the digits, using >, <, or = to record the comparison.
Engage NY Module 1 B-6 – Find 1, 10, and 100 thousand more and less than a given number.

Student Video Lessons
Virtual Nerd – 4.NBT.A.1
Learn Zillion – Read, write, and compare multi-digit whole numbers
Learn Zillion – Understand place value in terms of word forms
Study Jams – Expanded Notation
Study Jams – Ordering Whole Numbers

Online Problems and Assessments
Khan Academy – Questions and Video Lessons
Place Value
Word Names for Numbers
Compare Numbers
Addition Patterns over Increasing Place Values
Inequalities with Multiplication
Inequalities with Division
Inequalities – Addition, Subtraction, Multiplication & Division

Online Games
Comparing Numbers