###
array

The arrangement of the units of a number in rows and columns

###
capacity

The amount a container can hold.

###
estimate

A close guess of the actual value; usually with some thought or calculation involved.

###
grid

Horizontal and vertical lines on a map.

###
hexagon

A polygon with 6 sides and 6 angles.

###
frequency

The number of times an event occurs.

###
stem

A tens digit in a stem-and-leaf-pllot

###
trundle wheel

A wheel that rolls to determine long distances.

###
hundredth

One of one hundred equal parts.

###
obtuse triangle

A triangle that has one angle greater than a right angle.

###
octagon

A polygon with eight sides.

###
ordered pair

A pair of numbers used to locate a point on a grid.

###
square

A quadrilateral with two pairs of parallel sides, four equal sides, and four right angles.

###
pint (pt)

A customary unit for measuring capacity; equal to 2 cups.

###
place value

Determines the value of a digit in a number, based on the location of the digit.

###
plane

A flat surface that goes on and on in all directions.

###
pictograph

A graph that uses pictures to show and compare information.

###
right triangle

A triangle with one right angle.

###
scale

The numbers on a bar graph that help you read the number each bar shows.

###
schedule

A table that lists activities or events and the times that they happen.

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