# 5th Grade Math Unit 10 Vocabulary

## 13 terms · textbook: Everyday Math

### Algebraic Expression

Uses operation symbols (+, -, x, and so on) to combine variables and numbers.

### Predict

To tell what happened ahead of time; to make an educated guess about what might happen.

### Rate

A comparison by division of two quantities with different units. For example, traveling 1oo miles in 2 hours can be expressed as 100 mi/2 hr or 50 miles per hour. In this case, the rate compares distance (miles) to time (hours).

### Rate of Speed

A speed tells how many units of distance there are for a given unit of time.

### Formula

A general rule for finding the value of something. A formula is often written symbolically using letters, called variables, to stand for the quantities involved.

### Line Graph

A graph in which data points are connected by a line or line segments.

### Ordered Number Pairs

A pair of numbers used to locate a point on a coordinate grid. The first number corresponds to position along the horizontal axis, and the second number corresponds to position along the vertical axis.

### Coordinates

Numbers used to locate a point on a number line, or one of two numbers used to locate a point on a coordinate grid.

### Ratio

A comparison by division of two quantities with the same units. Rations can be expressed as fractions, decimals, or percents, as well as in words.

### Circumference

The distance around a circle or maximum distance around a sphere.

### Diameter

A line segment that passes through the center of a circle or sphere and has endpoints on the circle or sphere: also, the length of such a line segment. The diameter of a circle or sphere is twice the length of the radius.