Problem 1 :
Subtract -2 from 3 using a number line.
Problem 2 :
Subtract 2 from 3 using a number line.
Problem 3 :
Subtract 3 from 5 using a number line.
Problem 4 :
Subtract 5 from -1 using a number line.
Problem 5 :
Subtract -3 from -7 using a number line.
Problem 1 :
Subtract -2 from 3 using a number line.
Solution :
Because we subtract a negative number -2 from 3, we have to move 2 units in the positive direction from 3 on the number line as shown in the picture below.
After having moved 2 units in the positive direction, we are in the position of 5.
Therefore,
3 - (-2) = 5
Problem 2 :
Subtract 2 from 3 using a number line.
Solution :
Because we subtract a positive number 2 from 3, we have to move 2 units in the negative direction from 3 on the number line as shown in the picture below.
After having moved 2 units in the negative direction, we are in the position of 1.
Therefore,
3 - (2) = 1
Problem 3 :
Subtract 3 from 5 using a number line.
Solution :
Because we subtract a positive number 3 from 5, we have to move 3 units in the negative direction from 5 on the number line as shown in the picture below.
After having moved 3 units in the negative direction, we are in the position of 2.
Therefore,
5 - (3) = 2
Problem 4 :
Subtract 5 from -1 using a number line.
Solution :
Because we subtract a positive number 5 from -1, we have to move 5 units in the negative direction from -1 on the number line as shown in the picture below.
After having moved 5 units in the negative direction, we are in the position of -6.
Therefore,
-1 - (5) = -6
Problem 5 :
Subtract -3 from -7 using a number line.
Solution :
Since we subtract a negative number -3 from -7, we have to move 3 units in the positive direction from -7 on the number line as shown in the picture below.
After having moved 3 units in the positive direction, we are in the position of -4.
Therefore,
-7 - (-3) = -4
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