Back to Grade 4 Math
Grade 4 Mathematics

Multi-digit Multiplication

Master multiplication with larger numbers! Learn multiple strategies including area models, partial products, and the standard algorithm.

FL B.E.S.T. Standard: MA.4.NSO.2.1
🔢

4-digit by 1-digit

Multiply numbers like 2,345 x 7 using place value

📈

2-digit by 2-digit

Master problems like 34 x 56 with multiple methods

📋

Area Model

Visual method connecting multiplication to area

📝

Standard Algorithm

Efficient method for any multiplication problem

Key Concepts Covered

Place Value in Multiplication

When multiplying 3,245 x 6, think: (3,000 x 6) + (200 x 6) + (40 x 6) + (5 x 6). Each part uses basic facts!

Area Model Strategy

Break numbers apart and arrange in a rectangle. For 23 x 45: make a 4-part rectangle showing 20x40, 20x5, 3x40, 3x5.

Partial Products Method

Multiply each part separately, then add. Keeps track of place value and shows WHY the standard algorithm works.

Standard Algorithm

The traditional method with regrouping. Works efficiently but should be connected to understanding, not just memorized steps.

Teacher Guide

Complete lesson plans and strategies

  • Standards breakdown with clarifications
  • Common misconceptions to address
  • Progression from area model to algorithm
  • Differentiation strategies
  • Assessment guidance
View Guide

Student Concept Worksheet

Introduction to multiplication strategies

  • Visual area model examples
  • Partial products step-by-step
  • Standard algorithm walkthrough
  • 5 guided practice problems
View Worksheet

Practice Worksheet

25 problems across all strategies

  • 4-digit by 1-digit (8 problems)
  • 2-digit by 2-digit (8 problems)
  • Area model practice (4 problems)
  • Word problems (5 problems)
View Practice

FAST Practice Quiz

10 test-format questions

  • Multiple choice questions
  • Fill-in-the-blank problems
  • Word problems
  • Mirrors actual FAST format
View Quiz

Parent Activity Guide

Home practice activities

  • Grocery shopping multiplication
  • Area model with real rectangles
  • Mental math strategies
  • Conversation starters
  • Spanish summary included
View Activity

Answer Keys

Complete solutions with explanations

  • All worksheet answers
  • Quiz answer explanations
  • Scoring guide
  • Common error analysis
View Answers