12 in words

Ways to write it

As an ordinal

twelfth

Roman numeral

XII

Expanded form

10 + 2

Place value

Number facts

Even or odd

Even

Prime or composite

Composite

Factors

1, 2, 3, 4, 6 and 12 (6 factors)

First 10 multiples

12, 24, 36, 48, 60, 72, 84, 96, 108, 120

Square

12 × 12 = 144

Square root

≈ 3.46

Sum of the digits

1 + 2 = 3

Rounded to the nearest 10

10

Number before

11

Number after

13

In binary

1100

Quick check

1. What number comes just after 12?

   Show the answer

   13

2. Is 12 even or odd?

   Show the answer

   Even

3. What is 12 + 10?

   Show the answer

   22

Practise with a game

Count with Me

Count pictures up to 5, 10 or 20 and compare groups.

Place Value Quest

Ones, tens, hundreds and thousands.

Times Tables Challenge

Practise any times table from 2× to 12×.

Frequently asked questions