Undefined, Union, Unit

Interactive PDFs! Choose fonts, colors, and SIZES. Answer. Print or file.

These are our Math Dictionary words that start with U words.

Ok. There are not very many terms in this list.

**U.S. Customary System** - a system of measurement used almost exclusively in the United States of America. (teaspoon, tablespoon, ounce, cup, pint, quart, gallon; inch, foot, yard, mile; ounce, pound, ton)

**Undefined** - if the denominator of a fraction is 0, then the fraction is undefined.

**Undefined Slope** - vertical lines that have slopes that are called undefined.

**Unilateral Surface** - a surface with only one side, such as a Moebius strip.

**Unimodal** - a finite sequence is unimodal if it first increases and then decreases.

**Unimodular** - a square matrix is unimodular if its determinant is 1.

**Union of Sets** - the set of all the objects contained by at least one of the sets. The symbol for union is U.

**Unit** - a single thing used as a standard or measure.

**Unit Circle** - a unit circle is a circle with radius 1, circle of radius 1 centered at the origin (0,0) of the Cartesian coordinate system.

**Unit Cube** - a cube with edge length 1.

**Unit Fraction** - a fraction whose numerator is 1.

**Unit Square** - a unit square is a square of side length 1.

**Unitary Divisor** - a divisor d of c is called unitary if gcd(d,c/d) = 1.

**Units column** - the first column of numbers to the left of the decimal point.

**Unity** - one

N * O * P * Q * R * S * T * U * V * W * X * Y * Z

I keep these definitions as a glossary in my binder.

Sample Math practice worksheets. Bundle includes dictionary for Math.

2. One PDF Download. No ads.

3. Filed by topic.

4. Interactive. Printable.

5. Use with any Math Lesson Plans.

6. Addition, Subtraction, Multiplication, Division and Fraction Practice.

Have you tried Mathway's online calculator? Mathway 7 day trial here.

See also: Math Mammoth, Saxon Math, its DIVE, and FlashMaster.

Check for these and other New and Used School Supplies at Amazon!

Go to our main printable Math worksheets page.

Printable Worksheets › Math Dictionary › Words That Start With U