 A numberline shows the numbers in order.
 Numbers to the right of zero are positive numbers.
 Numbers to the left are negative numbers.
 A numberline has arrows because the numbers keep going forever.
 You can use the numberline to practice the addition and subtraction.
Method:
 Draw a number line with numbers.
 To find difference, we first go forward till we reach the bigger number and then backward till we reach the smaller number.
 To find sum, we first go till the first number and then move further from there to reach the next number.
Directions: Answer the following questions. Also write at least ten examples with subtraction and addition using number line.
