Subtraction of Integers with the Help of a Number Line Imagine a number line with the integers marked out on it. We want to find the difference between two i...
Imagine a number line with the integers marked out on it. We want to find the difference between two integers on this line.
Step 1: Locate the two integers you want to subtract.
Let's say you want to find the difference between 5 and 1.
On the number line, mark the points corresponding to 5 and 1 on the line.
Step 2: Estimate the difference.
Look at the distance between the two marks.
Since 5 is to the right of 1, we can estimate that the difference is positive.
Step 3: Mark the difference on the number line.
Draw a mark on the number line between the points representing 5 and 1.
This mark represents the difference between 5 and 1.
Step 4: Read the answer.
The difference between 5 and 1 is 4.
This means that the two integers 5 and 1 are 4 units apart on the number line.
Examples:
Subtracting 2 from 7:
Mark 7 on the number line.
Mark 5 on the line.
The difference is 2 units.
Subtracting 3 from 10:
Mark 10 on the number line.
Mark 7 on the line.
The difference is 3 units.
Tips for Using the Number Line:
Pay attention to the positions of the numbers on the number line.
Use the marks and gaps on the line to estimate the difference between numbers.
Remember that the distance between marks on the number line represents the absolute value of the difference