Solve these clues to fill the grid.
- Hopeful and optimistic; the opposite of negative
- 1 Across
- The divisor of a fraction
- 6 Across
- A piece of photographic film showing an image with light and shade or colors reversed
- 7 Across
- A quantity that is added
- 8 Across
- An arithmetic operation that is the inverse of division
- 10 Across
- A component of a mixture that has been separated by a ___ process (plural)
- 12 Across
- The dividend of a fraction
- 13 Across
- To make ___ or easier or reduce in complexity or extent
- 14 Across
- To mix together different elements
- 15 Across
- A visual representation of the relations between certain quantities, represented as points
- 16 Across
- An arithmetic operation in which the difference between two numbers is calculated
- 2 Down
- A constant number that serves as a measure of some property or characteristic
- 3 Down
- One of the portions into which something is regarded as divided and which together constitute
- 4 Down
- An integer or a fraction
- 5 Down
- The product of a quantity by an integer
- 9 Down
- Anything that contributes causally to a result
- 11 Down