Final answer:
To represent the equation 3,440 = 40, we need to complete the model by adding or subtracting numbers to both sides of the equation. However, there is no way to complete the model to represent this equation.
Step-by-step explanation:
To represent the equation 3,440 = 40, we need to complete the model by adding or subtracting numbers to both sides of the equation. To isolate the variable, we want to get rid of any constant terms. In this case, we can subtract 40 from both sides of the equation:
3,440 - 40 = 40 - 40
Simplifying, we get 3,400 = 0
However, this equation is not true since 3,400 is not equal to 0. Therefore, there is no way to complete the model to represent 3,440 = 40.