Across
- 3. a number with at least one other factor besides itself and one, i.e. not a prime number
- 5. in an algebraic expression or equation, either a single number or variable, or the product of several numbers and variables separated from another term by a + or – sign, e.g. in the expression 3 + 4x + 5yzw, the 3, the 4x and the 5yzw are all separate _____
- 6. a2 + b2 = c2 is the __________ theorem
- 9. the part of mathematics concerned with the size, shape and relative position of figures, or the study of lines, angles, shapes and their properties
- 11. a way of writing rational numbers (numbers that are not whole numbers), also used to represent ratios or division, in the form of a numerator over a denominator, e.g. 3⁄5
- 14. a number which, when multiplied by x yields the multiplicative identity 1, and can therefore be thought of as the inverse of multiplication. Eg x is 1/x __________.
- 15. a set that has no members, and therefore has zero size, usually represented by {} or ø
- 17. a traingle with 90° angle is a ______ angled triangle
- 18. pi is an example of _________ numbers
- 20. in geometry, a one-dimensional figure following a continuous straight path joining two or more points, whether infinite in both directions or just a line segment bounded by two distinct end points
Down
- 1. a number that will divide into another number exactly. Eg 5 and 2 are 10
- 2. whole numbers, both positive (natural numbers) and negative, including zero
- 4. a subsidiary collection of objects that all belong to, or is contained in, an original given set
- 6. the ratio of a circumference of a circle to its diameter, an irrational (and transcendental) number approximately equal to 3.141593…
- 7. a branch of mathematics that uses symbols or letters to represent variables, values or numbers, which can then be used to express operations and relationships and to solve equations
- 8. a collection of distinct objects or numbers, without regard to their order, considered as an object in its own right. eg the collection {1,2,3} is a ___.
- 10. a polynomial algebraic expression or equation with just two terms
- 12. the factors of the terms (i.e. the numbers in front of the letters) in a mathematical expression or equation.
- 13. a real number which expresses fractions on the base 10 standard numbering system using place value.
- 16. a number divisible by one and itself is called _______ number
- 19. a flat two-dimensional surface (physical or theoretical) with infinite width and length, zero thickness and zero curvature