Across
- 3. a set of numbers that contain operations and can contain a variable
- 4. an alphabet or term that represents an unknown number or unknown value or unknown quantity
- 7. pairs of mathematical manipulations in which one operation undoes the action of the other
- 10. straight line graphs to represent the relationship between two quantities
- 11. a single expression
- 12. an integer that is written along with a variable or it is multiplied by the variable
Down
- 1. a pair of numbers whose sum is zero
- 2. a value that doesn't change
- 5. a branch of mathematics that uses mathematical statements to describe relationships between things that vary
- 6. an abstract description of a concrete system using mathematical concepts and language
- 8. any mathematical statement which consists of numbers, variables and an arithmetic operation between them
- 9. the process of finding the numerical value of an expression or equation