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Question
Evaluate the value of (−4−1) using chip model.
Evaluate the value of (−4−1) using chip model.
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Solution
The correct option is B −5
We would use chip model method to evaluate the value of (−4−1).
(−4−1) can be written as (−4)+(−1), which can be visualised as adding −1 to −4.
Let's consider a yellow circle as negative integer ‘‘−1".
To find the value of −4−1=(−4)+(−1), we need to add 4 yellow circles to 1 yellow circle, which can be illustrated as
In the above diagram, after adding 4 yellow circles to 1 yellow circle, we get 5 yellow circles, which is equivalent to −5 (as each yellow circle represents ‘‘−1").
∴ The value of (−4−1) would be equal to −5, i.e., (b.) is the correct option.
We would use chip model method to evaluate the value of (−4−1).
(−4−1) can be written as (−4)+(−1), which can be visualised as adding −1 to −4.
Let's consider a yellow circle as negative integer ‘‘−1".
To find the value of −4−1=(−4)+(−1), we need to add 4 yellow circles to 1 yellow circle, which can be illustrated as
In the above diagram, after adding 4 yellow circles to 1 yellow circle, we get 5 yellow circles, which is equivalent to −5 (as each yellow circle represents ‘‘−1").
∴ The value of (−4−1) would be equal to −5, i.e., (b.) is the correct option.
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