Overview
This lecture explains how to use a multiplication grid (times table chart) to solve both multiplication and division problems.
Using a Multiplication Grid for Multiplication
- A multiplication grid shows numbers 1 to 10 (or 12) on the sides and top.
- To solve a multiplication question like 4 × 3, find 4 on one side and 3 on the top.
- Draw a line from each number; where they meet is the product (answer).
- Example: 4 × 3—lines meet at 12, so 4 × 3 = 12.
- The order does not matter: 3 × 7 and 7 × 3 both give 21 on the grid.
Using a Multiplication Grid for Division
- To solve division, use the divisor (the number you're dividing by) to start.
- Find the divisor on the side or the top and move along its row/column to find the dividend.
- When you find the dividend, follow the line to the top or side to find the answer (quotient).
- Example: 24 ÷ 4—find 4 on the side, move across to 24, go up to find the answer 6.
- This works starting from the side or the top, result is the same.
Practice and Application
- Five practice questions were given for students to solve using the multiplication grid.
- Answers should be found by following the grid lines as shown in the examples.
Key Terms & Definitions
- Multiplication grid (multiplication chart) — a table that shows products of pairs of numbers.
- Product — the result of multiplication.
- Dividend — the number being divided.
- Divisor — the number by which you divide.
- Quotient — the result of division.
Action Items / Next Steps
- Use the multiplication grid to solve the five practice questions provided.
- Submit your answers as instructed (e.g., in the comments).
- Practice solving both multiplication and division problems with different numbers using the grid.