11 Times Table

What you will learn

• Say and write the answers in the $11$ times table up to $11 \times 12$.
• Use the patterns in the table to check your answers.
• Use the table to solve simple word problems.

Before you start: you should know multiplication as equal groups. See Multiplication: Equal Groups and Arrays.

The idea

The $11$ times table lists $11$ multiplied by $1, 2, 3$ and so on up to $12$. Each answer is the number of objects in that many groups of $11$.

The whole table

Patterns

• For $11 \times 1$ up to $11 \times 9$ the answer is the digit twice: $11, 22, 33, 44, 55, 66, 77, 88, 99$.
• Ten times plus one more: $11 \times 12$ is $120 + 12 = 132$.
• The last three answers are $110, 121$ and $132$.
• Each answer is $11$ more than the one before.

Skip counting

Counting in steps of $11$ gives the answers one after another.

An array

An array shows the same facts as rows and columns.

Worked examples

Example 1: Repeat the digit

What is $11 \times 6$?

1. Write the digit twice: $66$.

Answer: $66$.

Example 2: Ten plus one

What is $11 \times 11$?

1. $10 \times 11 = 110$.
2. Add one more $11$: $121$.

Answer: $121$.

Example 3: Football

How many players are on $5$ football teams of $11$?

1. $5 \times 11 = 55$.

Answer: $55$ players.

The repeat-the-digit trick only works up to $11 \times 9$. For $11 \times 10$ and beyond, use ten times plus one more.

Why it matters

Elevens give a nice pattern for the first nine and a neat way to practise the idea that a times table fact can be built as ten times plus one more. The same idea works for 21 and 31.