To double or not to double

Recognising prefixes can be particularly helpful if you are unsure of when to double letters. As prefixes are added to the beginnings of words, removing them can help to establish whether the root is spelt correctly.

For example, a common spelling error is 'dissappear'. Removing the prefix 'dis-' leaves 'sappear', which is clearly incorrect. The correct spelling, of course, is 'disappear'.

Decide which of the following are correctly spelt.

Irregular	Right	Wrong
Disatisfaction	Right	Wrong
Immortal	Right	Wrong
Illogical	Right	Wrong
Iresponsible	Right	Wrong
Inumerate	Right	Wrong

Your name: