4th Grade Geometry
A triangle that contains one 90-degree angle.
Right Triangle
The top number in a fraction that tells how many parts of the whole are selected.
Numerator
The answer to a multiplication problem.
Product
The number of SQUARE units that cover a flat surface.
Area
The answer to a subtraction problem.
Difference
An angle measuring less than 90 degrees
A model that has a line with numbers, tick marks, and points
Number line
A number that is being divided in a division problem.
Dividend
The distance AROUND the outside of a figure.
Perimeter
The operation that joins groups to find the a total or sum.
Addition
Two lines in a plane that never intersect.
Parallel lines
Fractions that are easy to visualize and used to estimate
Benchmark Fractions
The answer to a division problem
A customary unit of measurement for liquid volume equivalent to 4 quarts.
Gallon
A model of a math problem that uses rectangular bars with numbers and symbols.
Strip Diagram
Lines that intersect and form a 90-degree angle.
Perpendicular lines
A fraction greater than one that has a whole number and a fraction.
Mixed Number
A number the dividend is being divided by in a division problem.
Divisor
A customary unit of measurement for liquid volume equivalent to 2 pints.
Quart
To change a number to the nearest ten, hundred, or thousand to make it easy to estimate.
Round
An angle with a measure greater than 90 degrees but less than 180 degrees.
Obtuse angle
A fraction greater than one who numerator is greater than the denominator.
Improper fraction
A number leftover that can't be divided into equal groups.
Remainder
A metric unit of measure equivalent to 1,000 grams.
Kilogram
To find an answer close to the actual the answer, but is not exact.
Estimate