how to use grids to mutiply decimals by decimals. please give example
Take one decimal on the x axis, another on the y axis. The area enclosed in the rectangel between that crossing point and the axis is the multiplied product. You get area by counting squares on the grid.
what bill coins could you use to show $8.60?
8.60
To multiply decimals by decimals using grids, you can follow these steps:
Step 1: Set up a grid or table
Create a grid or table with rows and columns. The number of rows and columns will depend on the decimal places and digits in the numbers you want to multiply.
Step 2: Label the grid
Label the rows and columns with the decimal places of the numbers being multiplied. Start by labeling the rows with the decimal places of the first number and the columns with the decimal places of the second number.
Step 3: Fill in the grid
Fill in the grid by multiplying the digits in the corresponding row and column. Place the product in the corresponding cell.
Step 4: Add up the products
Add up the products in each cell to get the final result.
Here's an example to illustrate the process:
Let's say we want to multiply 2.35 by 1.2
Step 1: Set up a grid
Create a 3x3 grid or table.
| 2 | . | 3 |
------------------------
| 1 | . | 2 |
------------------------
| 0 | . | 0 |
Step 2: Label the grid
Label the rows and columns with the decimal places.
| 2 | . | 3 |
-----------------------
| 1 | . | 2 |
-----------------------
| 0 | . | 0 |
Step 3: Fill in the grid
Multiply the digits in the corresponding row and column, and place the product in the cell.
| 2 | . | 3 |
-----------------------
| 2 | . | 4 |
-----------------------
| 0 | . | 0 |
Step 4: Add up the products
Add up the products in each cell:
2 + 0 + 0 + 0 = 2
0 + 0 + 4 + 0 = 4
0 + 0 + 0 + 0 = 0
The final result is 2.4
So, 2.35 multiplied by 1.2 is equal to 2.4