Public learning track
Place Value Structure and Representation to 100,000
3rd Grade · Math · Open Global Math
8 lessons
Goal
Read, write, compose, decompose, and represent whole numbers up to 100,000 in standard, word, and expanded forms while explaining positional value.
Featured Diagrams
Understanding Thousands Place Value and Blocks
8 lessons
0 of 8 done
- 1Understanding Thousands Place Value and BlocksUp nextStart
- 2Understanding Ten Thousands in the Base-Ten SystemPremiumNot started yet
- 3Reading and Writing Five-Digit Numbers in Standard FormNot started yet
- 4Writing Five-Digit Numbers in Word FormNot started yet
- 5Writing Five-Digit Numbers in Expanded FormNot started yet
- 6Converting Between Standard, Expanded, and Word FormsNot started yet
- 7Explaining Ten-Times Relationships Between Adjacent Place ValuesNot started yet
- 8Flexible Partitioning and Regrouping of Five-Digit NumbersNot started yet
Curriculum Framework
3rd Grade · Math · Open Global Math
1
8 lessons
Place Value Structure and Representation to 100,000
Read, write, compose, decompose, and represent whole numbers up to 100,000 in standard, word, and expanded forms while explaining positional value.
2
4 lessons
Skip Counting and Number Sequences to 100,000
Count forward and backward across place-value boundaries in intervals of 1, 2, 4, 8, 10, 50, and 100.
3
8 lessons
Comparing, Ordering, and Relative Magnitude to 100,000
Compare and order multi-digit numbers up to 100,000 using comparison symbols, positional reasoning, and relative difference concepts.
4
7 lessons
Rounding and Estimation Strategies
Round multi-digit whole numbers to the nearest 10, 100, 1,000, or 10,000 and apply compatible numbers to assess calculation reasonableness.
5
7 lessons
Mental Addition and Subtraction Within 1,000
Develop flexible mental strategies for adding and subtracting two- and three-digit numbers within 1,000.
6
8 lessons
Written Addition and Subtraction with Regrouping
Fluently add and subtract three-digit whole numbers using standard columnar algorithms and verify solutions with inverse operations.
7
7 lessons
Multiplying Multiples of Ten and Two-Digit Numbers
Multiply one-digit whole numbers by multiples of 10 (10–90) and two-digit numbers by one-digit numbers using place-value strategies, partial products, and written methods.