Division 3: More long division and remainder examples. Division 2. Division 1. Why Lattice Multiplication Works. Lattice Multiplication. Mulitplication 8: Multiplying decimals (Old video) Multiplication 7: Old video giving more examples. Multiplication 6: Multiple Digit Numbers. Multiplication 5: 2-digit times a 2-digit number. Multiplication 4: 2-digit times 1-digit number. Multiplication 3: 10,11,12 times tables. Multiplication 2: The Multiplication Tables. Basic Multiplication.