Answer :
The answer is 900 because 20×9=180 and just multiply 180×5 and that equals 900.
Answer:
The property used is Commutative property.
Step-by-step explanation:
To find : The product of [tex]20\times 9\times 5[/tex]. Tell which property is used.
Solution :
Product of [tex]20\times 9\times 5[/tex]
Applying Commutative property to make calculation easier,
i.e. [tex]a\times b=b\times a[/tex]
Rearrange the terms,
[tex]20\times 9\times 5=(20\times 5)\times 9[/tex]
Multiply first bracket,
[tex]20\times 9\times 5=100\times 9[/tex]
Multiply,
[tex]20\times 9\times 5=900[/tex]
Therefore, The property used is Commutative property.