Using a number line to model division, 12 ÷ 4 = 3
To carry out a division operation using a number line, follow the steps below:
- Select the origin (point 0) as the starting point
- Identify the dividend and the divisor
- Use the divisor as the gap between 0 and subsequent consecutive numbers
- Count the number of gaps between 0 and the dividend
For the division operation 12 ÷ 4, Maria should:
- Make 0 as the starting point on the number line
- Identify the dividend (12) and the divisor(4)
- Make the gap between 0 and subsequent numbers to be 4(the divisor)
Therefore, the points on the number line will be 0, 4, 8, and 12
- Count the number of gaps between these points
That is, 0 to 4, 4 to 8, and 8 to 12.
Since there are three gaps between 0 and 12 on the number line, using a gap difference of 4, then 12 ÷ 4 = 3
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