factoring the tens how to find the product using rectangles

my son's homework asked to find each product by factoring the tens on 6x2, 6x20, and 6x200 and to draw rectangles if he needed to. I'm not unerstanding

To find the product using rectangles, you can use the concept of factoring the tens. Here's how you can do it:

Step 1: Write down the two numbers that you want to multiply. Let's say they are A and B.

Step 2: Identify the tens digit of both numbers. For example, if A = 40 and B = 50, the tens digits are 4 and 5, respectively.

Step 3: Draw two rectangles, one for each number. The side lengths of these rectangles will correspond to the tens digit of the numbers.

Step 4: Divide each rectangle into ten equal sections or squares, representing the ones place.

Step 5: Count the number of squares in each row of the rectangle representing the tens digit. This will give you the value of the tens digit multiplied by 10. For example, if the rectangle representing 4 has 3 squares in each row, it represents 30 (4 x 10).

Step 6: Multiply the values obtained in step 5 for both numbers. In our example, 30 (4 x 10) and 50 (5 x 10).

Step 7: Multiply the ones digit of both numbers. In our example, 0 x 0.

Step 8: Add the results from step 6 and step 7. In our example, 30 + 50 + 0 = 80.

So, the product of 40 and 50 (factoring the tens using rectangles) is 80.

By following these steps and using rectangles to represent the tens digit, you can easily find the product of numbers by factoring the tens.