Answer:
Multiplication and Division of Integers
MULTIPLICATION
RULE 1: The product of a positive integer and a negative integer is negative.
RULE 2: The product of two positive integers is positive.
RULE 3: The product of two negative integers is positive.
Examples:
Rule 1: 1. (+4) x (-2) = -8 2. (-2) x (+5) = -10
Rule 2: 1. (+6) x (+8) = +48 2. (+6) x (+2) = +12
Rule 3: 1. (-6) x (-8) = +48 2. (-2) x (-4) = +8
DIVISION
RULE 1: The quotient of a positive integer and a negative integer is negative.
RULE 2: The quotient of two positive integers is positive.
RULE 3: The quotient of two negative integers is positive.
Examples:
Rule 1: 1. (-8) / (+4) = -2 2. (-12) / (+6) = -2
Rule 2: 1. (+6) / (-3) = -2 2. (+24) / (-6) = -4
Rule 3. 1. (+9) / (+3) = +3 2. (+16) / (+4) = +4
Rule 4: 1. (-6) / (-2) = +3 2. (-42) / (-7) = +6
SUMMARY OF MULTIPLICATION AND DIVISION RULES
If the signs are different the answer is negative.
If the signs are alike the answer is positive.
Problems:
(+3) x (-1) = __________
(+7) x (+6) = __________
(-5) x (-5) = ___________
(-8) x (-6) = ___________
( -12) x (+5) = _________
(+16) x (0) = __________
(-30) x (-3) = __________
(-18) x (+23) = ________
(-40) x (-4) = __________
(-11) x (+4) = _________
(+3) x (-8) = __________
(+15) x (0) = __________
(-7) x (-4) = ___________
(+9) x (+8) = __________
(+9) / (+3) = __________
(+10) /(-5) = __________
(-12) / (-3) = __________
(-25) / (+5) = __________
(-45) / (+15) = _________
(-18) / (-6) = __________
(+52) / (13) = __________
(-30) / (+10) = _________
(+14) / (-2) = __________
(+16) / (-4) = __________
(-42) / (+7) = __________
(4) / (2) = _____________
0 / (-7) = ______________
0 / (6) = ______________
Answer Key Multiplication and Division of Integers
42
25
48
–60
0
90
–414
160
–44
–24
0
28
72
3
–2
4
–5
–3
3
4
–3
–7
–4
–6
2
0
0
