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Year 1 - Prefix un
Reading books can help you remember how to spell words.

Year 1 - Prefix un

Prefix un informs KS1 children that the root word stays the same but the meaning can be changed by this prefix. The words are taken from the recommended spellings in the National Curriculum.

Sometimes we can say the opposite of something by adding the letters ‘un’ to a word. If I’m not happy, I can say I’m ‘unhappy’ – the word ‘un’ is added to the beginning of the word to show that I’m not happy. See if you can get full marks on these words that can start with the prefix ‘un'.

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1.
You need a key to ____ that padlock.
unlock
unloc
unlok
inlock
If you fix locks you are called a locksmith.
2.
Spell the missing word: It was too hard and so he was ____ to finish the test.
unable
unaible
unayble
unaball
In England, during our final years at school we sit tests called GCSEs.
3.
Spell the missing word: I'm feeling a bit ____.
unwell
unwel
unwrell
unwele
If you feel sick when in a car, on a train or plane - this is called motion sickness.
4.
If you do something up, I now want you to do the opposite, so you need to ____ it.
indo
undo
undoo
undid
All you need to do is write the prefix 'un' before the word 'do'.
5.
Spell the missing word: Please will you help me ____ my coat?
unzip
unzipp
unzep
unzepp
The largest zip making company in the world is called YKK.
6.
Spell the missing word: I'm so ____.
infit
unfitt
unfit
anfit
Being unfit makes you gain weight and is bad for your health.
7.
You didn't play fair, so that was ____ of you.
unfar
unfai
unfair
unfare
The word 'fair' stays the same - this is called the root word. Imagine a tree with roots, it stays there and doesn't move, just like these root words.
8.
Spell the missing word: Have you ____ your top button?
undon
undone
undun
undown
When we are full up, we sometimes undo our top button to stop it pushing into our growing bellies!
9.
If you load the dishwasher, I now want you to do the opposite, so you need to ____ the dishwasher.
inload
outload
unload
unlood
The word 'load' stays the same and the spelling stays the same - all you need to do is add 'un' to the beginning.
10.
Spell the missing word: That was very ____ of you.
unkined
uncind
uncined
unkind
Another word for unkind is mean.
Author:  Finola Waller

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