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The 5*5 grid shown contains a collection of squares with sizes from 1*1 to 5*5. How many of these squares contain the black center square?

 



 

mathtoo  Sep 10, 2018

Best Answer 

 #1
avatar+2759 
+2

well let's take a look...

 

it's in the 5x5 square

 

it's in all 4 of the 4x4 squares

 

it's in all 9 of the 3x3 squares

 

It's in 4 of the 2x2 squares

 

It's in 1 of the 1x1 squares

 

for a total of 19 squares

Rom  Sep 10, 2018
 #1
avatar+2759 
+2
Best Answer

well let's take a look...

 

it's in the 5x5 square

 

it's in all 4 of the 4x4 squares

 

it's in all 9 of the 3x3 squares

 

It's in 4 of the 2x2 squares

 

It's in 1 of the 1x1 squares

 

for a total of 19 squares

Rom  Sep 10, 2018

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