Multiplication & Division Arrays

Front

What is an array in mathematics?

Back

An array is a systematic arrangement of objects, usually in rows and columns, used to represent multiplication and division.

Front

How do you calculate the total number of units in an array?

Back

Multiply the number of rows by the number of columns.

Front

What multiplication fact corresponds to an array that is 4 units high and 5 units wide?

Back

4 x 5 = 20.

Front

What is the relationship between multiplication and division in arrays?

Back

Multiplication can be used to find the total number of items in an array, while division can be used to determine how many rows or columns can be formed.

Front

If an array has 32 total units and is arranged in 8 rows, how many units are in each row?

Back

32 / 8 = 4 units per row.

Front

What does the term 'R' mean in division problems?

Back

'R' stands for 'remainder', which is the amount left over after division.

Front

How can you represent the number of tables needed for a party with 20 guests if each table seats 4?

Back

You can use the equation 20 ÷ 4 = 5 tables.

Front

What is the multiplication sentence represented by an array of 5 rows and 5 columns?

Back

5 x 5 = 25.

Front

How do you draw an array for the multiplication fact 3 x 4?

Back

Draw 3 rows with 4 objects in each row.

Front

What is the purpose of using arrays in solving word problems?

Back

Arrays help visualize the problem and organize information to make calculations easier.