Math 7 Grade 7. Can anyone help me answer these questions?
 1. What is the opposite of -2? 
 2. When we add opposites together they will always equal = ?
 -1 1 or 0
 This is also known as what ?
 additive inverse or opposite addition or inverse?
 Adding with integers with SAME signs.
 -8 + -3 = ? 
 -12 + -15 = ?
 -3 + -9 + -25 = ?