Information about mathematical equations or formulas is least likely to be found in a words spelling notebook, as this type of notebook is usually used for writing down and practicing spelling words, not for mathematics.
When there is a spelling mistake in a demand draft, the information might be distorted. It is therefore very important to always use the correct spellings.
skilful
The Correct Spellings are "Acquire"
Helps to teach you proper spelling.
Neither of those spellings is correct; the correct spelling is "extravagant."
The proper spelling is "psychic."
By getting rid of the final s in spellings. It should read "How can I improve my spelling" But really, the only way to improve spelling is to read, then read, then read again, and again....
The plural form of "changing the spelling" would be: "changing the spellings". An example is warranted: Deanie Etcetera began changing the spellings of all her online user names.
Pronunciation of the words and not spellings
The correct spelling is alliteration (using words with similar sounds or spellings).
There are two accepted spellings, with or without the "O" : mustache/moustache. (The growth of hair between the nose and mouth.)