Solve these clues to fill the grid.
- One of the portions into which something is regarded as divided and which together constitute
- 2 Across
- The property possessed by a sum or total or indefinite quantity of units or individuals (plural)
- 5 Across
- A number that identifies a position relative to an axis (plural)
- 8 Across
- The cardinal number that is the sum of four and one
- 10 Across
- One of four equal parts
- 13 Across
- A quantity that is added
- 15 Across
- The cardinal number that is the sum of eight and one
- 16 Across
- The cardinal number that is the sum of three and one
- 1 Down
- An arithmetic operation in which the difference between two numbers is calculated
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- A point located with respect to surface features of some region
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- The cardinal number that is the sum of one and one or a numeral representing this number
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- An instance or single occasion for some event
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- A visual representation of the relations between certain quantities, represented as points (plural)
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- A science dealing with the logic of quantity and shape and arrangement (plural)
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- The smallest whole number or a numeral representing this number
- 12 Down
- The cardinal number that is the sum of one and one and one
- 14 Down