Elementary Mathematics quiz
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What is a number divisible only by 1 and itself called?
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More questions about Elementary Mathematics
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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Which transformation creates a mirror image of a shape?
Answer: Reflection
Why: A reflection keeps a shape's size and angles identical but reverses its orientation across a line.
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Which property allows changing the order of factors?
Answer: Commutative property
Why: While the commutative property shifts order, the associative property only shifts parentheses without moving terms.
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How many degrees do a polygon's exterior angles total?
Answer: 360°
Why: Tracing the perimeter of any convex polygon completes one full 360° turn regardless of its side count.
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What operation undoes addition?
Answer: Subtraction
Why: Addition and subtraction are inverse operations, meaning one directly cancels out the effect of the other.
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How many faces does a regular dodecahedron have?
Answer: 12
Why: All 12 faces of a regular dodecahedron are identical five-sided regular pentagons.
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What is an angle measuring less than 90° called?
Answer: Acute angle
Why: Angles under 90° are acute, whereas angles measuring between 90° and 180° are called obtuse.
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