Give me a exercise on a Addition,Subtraction,Multiplication,and Division with a formula?

Sure! Here is an exercise on division using the formula:

Exercise: Calculate the result of dividing 56 by 8 using the formula for division.

Formula: Division is the process of splitting a number into equal parts. The formula for division is:

\[ \text{Quotient} = \frac{\text{Dividend}}{\text{Divisor}} \]

Given:
Dividend = 56
Divisor = 8

Using the formula:
\[ \text{Quotient} = \frac{56}{8} \]

\[ \text{Quotient} = 7 \]

Therefore, the result of dividing 56 by 8 is 7.

Exercise:

A farmer has a field of rectangular shape with a length of 250 meters and a width of 120 meters. He wants to divide the field into smaller rectangular plots of equal area. Each plot should have a width of 20 meters.

Formula:

Area = Length × Width

Objective:

Determine the number of plots that can be created within the field.

Step-by-Step Solution:

1. Calculate the total area of the field:
- Area = Length × Width
- Area = 250 meters × 120 meters
- Area = 30,000 square meters

2. Calculate the area of each plot:
- Area of each plot = Width of plot × Length of plot
- Area of each plot = 20 meters × (unknown length)

3. Divide the total area of the field by the area of each plot to find the number of plots:
- Number of plots = Total area of field ÷ Area of each plot
- Number of plots = 30,000 square meters ÷ (20 meters × Length of plot)

4. Solve for the length of each plot:
- Length of plot = 30,000 square meters ÷ (20 meters × Number of plots)

5. Substitute the given width of 20 meters and the length obtained in step 4 to find the number of plots:
- Number of plots = 30,000 square meters ÷ (20 meters × Length of plot)
- Number of plots = 30,000 square meters ÷ (20 meters × 150 meters)
- Number of plots = 100 plots

Therefore, the farmer can create 100 plots of equal area within the field.