Repeated Addition & Arrays

Front

What is repeated addition?

Back

Repeated addition is adding the same number multiple times. For example, 3 + 3 + 3 = 3 x 3 = 9.

Front

What is an array?

Back

An array is a way to organize objects in rows and columns. For example, 3 rows of 4 apples each.

Front

How do you describe an array with 2 rows and 5 columns?

Back

You would say it has 2 rows of 5.

Front

What are even numbers?

Back

Even numbers are numbers that can be divided by 2 without a remainder, like 0, 2, 4, 6.

Front

What are odd numbers?

Back

Odd numbers are numbers that cannot be divided by 2 evenly, like 1, 3, 5, 7.

Front

How many total objects are in an array of 4 rows and 3 columns?

Back

There are 12 objects (4 x 3 = 12).

Front

If you have 5 pairs of shoes, how many shoes do you have in total?

Back

You have 10 shoes (5 pairs x 2 = 10).

Front

What does it mean to take away one column from an array?

Back

It means to remove one vertical group of objects from the array.

Front

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

Back

Multiply the number of rows by the number of columns.

Front

What is the difference between rows and columns?

Back

Rows go across (horizontally), and columns go up and down (vertically).