4.NBT.2
Support Videos & Extra Practice
In this standard, students are expected to read and write numbers in different forms. Students must also be able to compare two numbers in any form using <, >, and =.
Base-ten numerals (standard form): 52, 394, etc.
Number names (word form): three hundred seventy-two; four thousand twenty-nine
Expanded form: 4,239 could be written as 4,000 + 200 + 30 + 9 OR 4 x 1000 + 2 x 100 + 3 x 10 + 9 x 1