Maths

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Across
  1. 2. unknown numerical value in an equation or an algebraic expression.
  2. 4. a quantity that can be expressed as an infinite decimal expansion.
  3. 6. line A visual representation of numbers on a graduated straight line.
  4. 7. the process of replacing a mathematical expression by an equivalent one, that is simpler (usually shorter)
  5. 9. that can be positive, negative or zero, but cannot be a fraction. We can perform all the arithmetic operations, like addition, subtraction, multiplication and division.
  6. 10. the numbers without fractions and it is a collection of positive integers and zero.
Down
  1. 1. any number that can be written as a fraction, where both the numerator (the top number) and the denominator (the bottom number) are integers, and the denominator is not equal to zero.
  2. 3. a decimal in which the digits after the decimal point terminate.
  3. 5. a part of a whole
  4. 8. a type of quadrilateral , a special case of a parallelogram, whose all sides are equal and diagonals intersect each other at 90 degrees.