Chapter 4

Multiplication

Master repeated addition and equal groups — from single-digit facts to long multiplication and mental strategies.

4h 00m8 lessons

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Learning Objectives

  1. 1Understand multiplication as repeated addition and as arrays
  2. 2Know the six properties: commutative, associative, distributive, identity (×1), zero property, closure
  3. 3Relate multiplication to division through fact families
  4. 4Master all 12×12 multiplication table facts
  5. 5Multiply multi-digit numbers using the standard long multiplication algorithm
  6. 6Apply multiplying by 10, 100, 1000 and multiples of 10
  7. 7Use mental strategies: doubling/halving, decomposition, compensating, multiplying by 5

Lessons in This Chapter

1
Interactiveeasy

Introduction to Multiplication

25 min
2
Interactive

1-Digit by 1-Digit

25 min
3
Interactive

2-Digit by 1-Digit

25 min
4
Interactive

2-Digit by 2-Digit

30 min
5
Interactive

3-Digit by 1-Digit

25 min
6
Interactive

3-Digit by 2-Digit

30 min
7
Interactive

4-Digit by 1-Digit

25 min
8
Interactive

4-Digit by 2-Digit

30 min

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