How to Use Strip Models to Identify Equivalent Expressions?
- Draw a rectangle for each term in the expression.
- Write the coefficient or the numerical value of each term in the corresponding rectangle.
- Use arrows to show the distribution of the coefficient to the terms within the rectangle.
- Identify common terms and combine the corresponding rectangles.
- Compare the simplified expressions and check if they are equal.
Using Strip Models to Identify Equivalent Expressions – Example 1
There are \(4\) times \(x\) and \(8\) times \(n\) in this model.
So, it can be written as \(4x+8n\).
Using Strip Models to Identify Equivalent Expressions – Example 2
Write the expression that the model represents.
Solution:
This model represents \(1+1+1+1+v+v+v+v+v\)
There are \(4\) times \(1\) and \(5\) times \(v\).
So, it can be written as \(4+5 v\)
Exercises for Using Strip Models to Identify Equivalent Expressions
Write the expression that the model represents.
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Original price was: $109.99.$54.99Current price is: $54.99.
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