About Multiplying Integers:
When we multiply or divide two integers, we determine the sign of the product/quotient then multiply/divide the absolute values. When the signs are the same, the answer is positive. When the signs are different, the answer is negative.
Test Objectives
- Demonstrate the ability to multiply two integers together
- Demonstrate the ability to multiply more than two integers together
- Demonstrate the ability to divide integers
#1:
Instructions: Find each product.
a) (-3)(-7)
b) (8)(-9)
c) (12)(-10,000)
d) (-24)(-4)
e) (-18)(5)
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#2:
Instructions: Find each product.
a) (-13)(9)
b) (100)(-151)
c) (-205)(-10)
d) (28)(-2)
e) (-11)(-7)
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#3:
Instructions: Find each product.
a) (6)(-3)(2)
b) (-8)(7)(-4)(-1)
c) (-1)(5)(-12)(9)
d) (17)(-3)(1)(0)(-81)
e) (11)(10)(-3)(-1)
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#4:
Instructions: Find each quotient.
a) -3 ÷ 1
b) -4 ÷ (-2)
c) 10 ÷ (-5)
d) 25 ÷ (-5)
e) -300 ÷ (-10)
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#5:
Instructions: Find each quotient.
a) -42 ÷ (-7)
b) -81 ÷ 9
c) 200 ÷ (-5)
d) 10,000 ÷ (-1000)
e) -45 ÷ (-15)
Watch the Step by Step Video Solution View the Written Solution
Written Solutions:
#1:
Solutions:
a) (-3)(-7) = 21
b) (8)(-9) = -72
c) (12)(-10,000) = -120,000
d) (-24)(-4) = 96
e) (-18)(5) = -90
Watch the Step by Step Video Solution
#2:
Solutions:
a) (-13)(9) = -117
b) (100)(-151) = -15,100
c) (-205)(-10) = 2050
d) (28)(-2) = -56
e) (-11)(-7) = 77
Watch the Step by Step Video Solution
#3:
Solutions:
a) (6)(-3)(2) = -36
b) (-8)(7)(-4)(-1) = -224
c) (-1)(5)(-12)(9) = 540
d) (17)(-3)(1)(0)(-81) = 0
e) (11)(10)(-3)(-1) = 330
Watch the Step by Step Video Solution
#4:
Solutions:
a) -3 ÷ 1 = -3
b) -4 ÷ (-2) = 2
c) 10 ÷ (-5) = -2
d) 25 ÷ (-5) = -5
e) -300 ÷ (-10) = 30
Watch the Step by Step Video Solution
#5:
Solutions:
a) -42 ÷ (-7) = 6
b) -81 ÷ 9 = -9
c) 200 ÷ (-5) = -40
d) 10,000 ÷ (-1000) = -10
e) -45 ÷ (-15) = 3
