Name:___________________________ __________
Date:____________________________
Subtracting Integers & Rational Numbers & Sum of Opposite Numbers
Independent Practice Answer Sheet
Re-write and solve the subtraction equation showing additive inverse.
1.  4.3  3.4
2.
Additive Inverse:  4.3  (3.4)  (7.7)
3
1
 ( )
5
5
Additive Inverse:
3  1 4
   
5  5 5
(4 points, 2 for the additive inverse & 2 for the answer)
3. Given the expression (-3.5) + 3.5 prove that the sum of opposite integers equal zero.
Equation: (-3.5)+ 3.5=0
Use the number line below to model the equation example
3.5
-3.5
-5
-4
-3
-2
-1
0
1
2
3
4
5
(2 points, 1 for the equation and 1 for the model)
4. South America’s lowest elevation is -35 meters. North America’s highest elevation is 8600 meters.
Write and Solve an equation finding the range of the elevations.
8600  (35)  8600  (35)  8635meters
(2 points, 1 for the equation and 1 for the answer)
6 out of 8 points show sufficient understanding.