D

=**D**=

Data- Information that is gathered by different methods.

Decimal- A number that contains a decimal point, such as 2.54.

Decimal point- The point or “dot” that is placed after the whole number in a decimal.

Degree- A unit in which angles are measured. It is also an unit in which temperature is measured.

Denominator- The number below the line in a fraction.

Density- A rate that compares the mass of an object with its volume.

Diameter- A line (segment) which goes from one point on the side of a circle (or a sphere), through the center and to a point on the other side.

Difference- The result after subtracting a number from another number.

Digit- One number symbol, of the number symbols, 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

Discount- The amount by which the regular price of an item is reduced.

Distributive property- The property which relates multiplication and addition/subtraction. It gives, or “distributes” a factor over the terms inside parentheses.

Dividend- The number which is being divided (in division).

Divisor- The number that divides into another number (in division).

Dodecahedron- A polyhedron (look in P reference) with 12 faces.