Whole Number Multiplication
4th Grade Math Resources for families
Big Ideas
Big Ideas
Represent the product of 2 two-digit numbers using arrays, area models, or equations
Multiply up to a four-digit number by a one-digit number and a two-digit number by a two-digit number
Solve one- and two-step problems involving multiplication
The Progression of Multiplication
The Progression of Multiplication
Represent the product of 2 two-digit numbers using arrays, area models, or equations
Represent the product of 2 two-digit numbers using arrays, area models, or equations
- Become familiar with the area model, a different method of multiplying than you may have learned.
- Have your child recognize arrays in real-world situations (e.g., a carton of eggs, a pack of water bottles, a cupcake baking pan, a checkerboard). Help your child distinguish between the terms row and column.
Multiply with arrays
Multiplicación con arreglos
Array
How-To: Area models
Modelos de áreas
Area Model
Multiply up to a four-digit number by a one-digit number and a two-digit number by a two-digit number; solve problems involving multiplication
Multiply up to a four-digit number by a one-digit number and a two-digit number by a two-digit number; solve problems involving multiplication
- Create a game to practice multiplication facts with your child. Each of you will need ten index cards or small pieces of paper. Number the cards so each of you has one card for each digit (0–9). Place the cards facedown in a pile. One player picks up two cards. The other player has to multiply the numbers shown on the two cards. Switch roles.
- With your child, read a magazine article or a page from a book. Together, use the context of what you’ve read to create a word problem. Solve the problem together
How-To Video: Partial Products
Partial Products
Multiply by 1-Digit Numbers with Partial Products
Multiply by 2-Digit Numbers with Partial Products
Game: Multiply 2-digit by 1-digit numbers
Game: Missing Digits Multiplication
