Some nouns relating to math:
give the singular indefinite noun
Countable in math may not mean the same thing as countable in English. Do you remember the Partridge-in-a-Pear-Tree song? The nouns following the numbers are mathematically countable.
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Some concrete nouns that are objects are:applebroomcabbagedeskeggflowergarageharpicejerseykneelampmapneedleonionplanequiltrockshelltruckumbrellavegetablewatchxylophoneyamzircon
Some nouns to countries are:airplanesshipstrainsferriestouristsimportsSome nouns for countries are:homelandsdemocraciesmonarchiesrepublicsplacesterritories
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There are two groups of nouns that have no singular form.Words for pairs, called binary nouns; for example, the singular is pants, the plural is two pairs of pants. Others are:shortstrouserspajamasscissorsglassestweezersAggregate nouns; some end in -s, but are used as singular or plural:accommodationsmathematicscongratulationsinformationknowledgegoods
Some examples of closed compound nouns are:arrowrootbaseballcardboarddeadbeatelderberryfireplacegoalposthouseboaticebergjumpsuitkeepsakelunchboxmeatloafnotebookoutsideportholequartermasterrooftopsoapsudstenderfootunderdogviewpointwarthogyearbookzooplankton
Some nouns as adjectives are:family, 'Meet my family.' and 'This is the family dog.'school, 'Their school is closed today.' and 'My father is a school teacher.'fish, 'Dad and I caught some fish.' and 'We're having fish sticks for lunch.'work, 'The work is hard but it pays well.' and 'You are required to wear work gloves.'movie, 'Did you like the movie?' and 'Who is your favorite movie star?'Some proper nouns as proper adjectives:I'll have some French toast with Canadianbacon.His style is Chaplinesque comedy.That theater runs Bollywood movies.The secret to a Reuben sandwich is the Swisscheese, not the Russian dressing.Her decor is designed around her collection of Chineseart.
Some text books answers are on the internet
None, because there are some mathematical problems that have not yet been solved!
add , subtract, multiply, fraction,