Public learning track
Skip Counting and Number Sequences to 100,000
3rd Grade · Math · Open Global Math
4 lessons
Goal
Count forward and backward across place-value boundaries in intervals of 1, 2, 4, 8, 10, 50, and 100.
Featured Diagrams
Skip Counting Forward and Backward by 2s, 4s, and 8s
4 lessons
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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.