Halloween Math Flashcard

Front

What is an array in math?

Back

An array is a way to organize objects in rows and columns.

Front

How do you find the total number of objects in an array?

Back

Multiply the number of rows by the number of columns.

Front

What does the multiplication symbol (x) mean?

Back

It means to add a number to itself a certain number of times.

Front

If there are 6 haunted houses and each has 8 ghosts, how do you find the total number of ghosts?

Back

Multiply 6 (houses) by 8 (ghosts per house) to get 48.

Front

What is the equation for 5 rows of 5 objects?

Back

5 x 5 = 25.

Front

What is the equation for 4 rows of 7 objects?

Back

4 x 7 = 28.

Front

What is the total number of objects in an array with 4 rows and 7 columns?

Back

28.

Front

How do you write a multiplication equation for an array?

Back

Count the rows and columns, then write rows x columns.

Front

What is the total number of ghosts if there are 6 haunted houses with 8 ghosts each?

Back

48 ghosts.

Front

What does it mean if an equation matches an array?

Back

It means the equation correctly represents the total number of objects in the array.