MULTIPLYING INTEGERS
(-8)(2)
-16
-10/5
-2
-1+7
6
The sum of 2 and -10
8
The rules for multiplying integers
(+)(+) = +
(-)(+) = -
(+)(-) = -
(-)(-) = +
-5(-10)
50
27/-3
-9
16+(-2)
14
The difference of -15 and -7
-22
The rules for division of integers
(+)/(+) = +
(-)/(+) = -
(+)/(-) = -
(-)/(-) = +
(4)(5)
20
-30/-3
10
2+(-2)
0
The product of 14 and 7
98
The three rules for combining integers
1) Only one sign in front of each number
2) Same sign, find sum, keep same sign
3) Different signs, find difference, give the answer the sign of the "larger" number
(-4)x(7)
-28
-42/6
-7
(-6)-(8)
-14
The quotient of 63 and 9
7
The additive identity
0
5(-6)
-30
-56/-7
8
8-(-12)+(-2)
18
A scuba diver descended 100 feet, then rose 80 feet, and finally rose 75 feet. This is where the scuba diver is in relation to where they started.
55 feet
The multiplicative identity
1