L

least common

The answer or number that occurs the fewest amount of times in a dataset.

pages 10, 23

left/right axis

The horizontal (x) axis on a coordinate grid.
(See also front/back axis.)

pages 324, 326

leftover

The amount left after a number is divided into equal groups.
(See also remainder.)

pages 62–63

length

The distance from end to end of an object.

pages 28, 103, 110, 114, 211, 310, 314, 319

less than

Not as many or as much as (e.g., 5 is less than 8 or 5 < 8).

pages 84–85, 247, 251, 254–255

level

To make even. For example, before using a two-pan balance, you must level the pans so one is not higher than the other.

pages 348–349, 402, 408, 410, 412

likely event

Something that will probably happen.

pages 6, 11, 21

line of symmetry

A line is a line of symmetry for a shape if the two parts match exactly when the shape is folded along this line.

page 307

line plot

A way of representing data on a number line that shows frequency of an event using a symbol, such as an X.

line symmetry

A figure has line symmetry if it has at least one line of symmetry.

page 307

liter

Metric unit used to measure volume. A liter is a little more than a quart. There are about 4 liters in a gallon.

page 401