Public learning track
Multi-Digit Multiplication Algorithms and Applications
4th Grade · Math · Open Global Math
7 lessons
Goal
Execute the standard multiplication algorithm fluently for up to 4-digit by 1-digit and 2-digit by 2-digit numbers and solve complex word problems.
Featured Diagrams
Multiplying Two- and Three-Digit Numbers by a One-Digit Number
7 lessons
0 of 7 done
- 1Multiplying Two- and Three-Digit Numbers by a One-Digit NumberUp nextStart
- 2Multiplying Four-Digit Numbers by a One-Digit NumberPremiumNot started yet
- 3Multiplying Two-Digit Numbers by Multiples of TenNot started yet
- 4Standard Algorithm for Two-Digit by Two-Digit MultiplicationNot started yet
- 5Analyzing and Correcting Multiplication ErrorsNot started yet
- 6Times-as-Many and Scaling Word ProblemsNot started yet
- 7Multi-Step Real-World Multiplication ProblemsNot started yet
Curriculum Framework
4th Grade · Math · Open Global Math
1
7 lessons
Place Value and Powers of Ten to Billions
Understand the base-ten place value system from ones through billions and explain how multiplying or dividing by ten shifts digit values.
2
7 lessons
Reading, Writing, and Comparing Numbers to Billions
Read, write in standard, word, and expanded forms, compare, and order multi-digit whole numbers through billions.
3
8 lessons
Rounding and Estimation in Financial Contexts
Round multi-digit whole numbers to any place and use compatible numbers to estimate and check reasonableness in everyday financial scenarios.
4
8 lessons
Multi-Digit Addition and Subtraction Algorithms
Fluently add and subtract multi-digit whole numbers using column algorithms, mental strategies, regrouping across zeros, and digital verification.
5
7 lessons
Multiplication Properties, Models, and Mental Strategies
Multiply multi-digit numbers using area models, arrays, the distributive property, perfect squares up to 15 × 15, and mental calculation shortcuts.
6
7 lessons
Multi-Digit Multiplication Algorithms and Applications
Execute the standard multiplication algorithm fluently for up to 4-digit by 1-digit and 2-digit by 2-digit numbers and solve complex word problems.
7
6 lessons
Division Concepts, Models, and Partial Quotients
Divide multi-digit dividends by one- and two-digit divisors using area models, arrays, partial quotients, and Euclidean division.
8
6 lessons
Multi-Digit Division Algorithms and Remainders
Fluently perform long division with up to four-digit dividends and two-digit divisors, and interpret remainders in real-world contexts.
9
6 lessons
Roman Numerals and Historical Number Systems
Read, write, and convert Roman numerals up to 3,000, and explore the historical emergence of zero, place value, and unified measurement systems.