divide the rectangle by tens and ones for each factor. then completes the calculation. 22X11
~arrays and an expanded algorithm
does anyone know how to do this??
thanks
How do yo do Arrays and Expanded Algorithum
Ex 23
x17
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To divide a rectangle by tens and ones for each factor, you can use an array model. Here's how you can apply it to the calculation 22 x 11:
Step 1: Draw a rectangle and divide it into two parts with a vertical line. Label the left section as tens and the right section as ones.
TENS | ONES
---------------------|------------------
| |
| |
| |
---------------------|------------------
Step 2: Fill in the array by allocating the appropriate number of units in each section. Since 22 can be divided into 20 (tens) and 2 (ones), distribute the units accordingly:
TENS | ONES
---------------------|------------------
||| ||| ||| ||| ||| ||| ||| ||| ||| |||
---------------------|------------------
|| ||
|| ||
Step 3: Multiply the number of units in each section. In this case, there are 20 units in the tens section and 2 units in the ones section. Multiply them together:
20 x 2
Step 4: Calculate the product:
20 x 2 = 40
Therefore, 22 x 11 equals 40.
Using the array model helps visualize the multiplication process by breaking it down into tens and ones.