When we estimate, we guess but with some calculation.
In this activity, you will be estimating which number the arrow is pointing to on the number line.
Example
Estimate which number the arrow is pointing to.
Answer
In your mind, picture where the halfway number 5 is.
In your mind, picture the small number divisions between 0, 5 and 10.
The arrow is pointing to one mark before 5, which is 4.
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Question
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Teacher explanation