5 in words

Ways to write it

As an ordinal

fifth

Roman numeral

V

Place value

Number facts

Even or odd

Odd

Prime or composite

Prime

Factors

1 and 5 (2 factors)

First 10 multiples

5, 10, 15, 20, 25, 30, 35, 40, 45, 50

Square

5 × 5 = 25

Square root

≈ 2.24

Rounded to the nearest 10

10

Number before

4

Number after

6

In binary

101

Quick check

1. What number comes just after 5?

   Show the answer

   6

2. Is 5 even or odd?

   Show the answer

   Odd

3. What is 5 + 10?

   Show the answer

   15

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