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
Multiplying Integers Practice Test:

#1:

Instructions: Find each product.

a) (-3)(-7)

b) (8)(-9)

c) (12)(-10,000)

d) (-24)(-4)

e) (-18)(5)


#2:

Instructions: Find each product.

a) (-13)(9)

b) (100)(-151)

c) (-205)(-10)

d) (28)(-2)

e) (-11)(-7)


#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)


#4:

Instructions: Find each quotient.

a) -3 ÷ 1

b) -4 ÷ (-2)

c) 10 ÷ (-5)

d) 25 ÷ (-5)

e) -300 ÷ (-10)


#5:

Instructions: Find each quotient.

a) -42 ÷ (-7)

b) -81 ÷ 9

c) 200 ÷ (-5)

d) 10,000 ÷ (-1000)

e) -45 ÷ (-15)


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


#2:

Solutions:

a) (-13)(9) = -117

b) (100)(-151) = -15,100

c) (-205)(-10) = 2050

d) (28)(-2) = -56

e) (-11)(-7) = 77


#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


#4:

Solutions:

a) -3 ÷ 1 = -3

b) -4 ÷ (-2) = 2

c) 10 ÷ (-5) = -2

d) 25 ÷ (-5) = -5

e) -300 ÷ (-10) = 30


#5:

Solutions:

a) -42 ÷ (-7) = 6

b) -81 ÷ 9 = -9

c) 200 ÷ (-5) = -40

d) 10,000 ÷ (-1000) = -10

e) -45 ÷ (-15) = 3