Question

find all the factor pairs for 80 and complete the equations. each equation should use a different pair of factors.
80 = 1·□
80 = 2·□
80 = □·□
80 = □·□
80 = □·□

Explanation:

Step1: Find factor with 1

$\frac{80}{1}=80$

Step2: Find factor with 2

$\frac{80}{2}=40$

Step3: Find next factor pair

$\frac{80}{4}=20$

Step4: Find next factor pair

$\frac{80}{5}=16$

Step5: Find next factor pair

$\frac{80}{8}=10$

Answer:

$80 = 1 \cdot 80$
$80 = 2 \cdot 40$
$80 = 4 \cdot 20$
$80 = 5 \cdot 16$
$80 = 8 \cdot 10$