algebra
noun
a type of mathematics that uses letters and symbols in place of numbers
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noun
the part of mathematics that involves basic calculations such as adding or multiplying numbers
noun
the part of mathematics that deals with the relationships between lines, angles, and surfaces
noun
the mathematical study of the features that objects still have when they are twisted and stretched out of shape but not torn
noun
the part of mathematics that studies how the angles and sides of triangles are related
adverb

the design of buildings or public spaces in a way which discourages people from touching, climbing or sitting on them …
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a situation in which a country's armed forces are physically present in an area of conflict …
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