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GRE math problem (can't understand
In fact, GRE mathematics is not difficult, mainly because you may not know the English expressions of some mathematical proper nouns, so you can't understand the questions. Give some English expressions of mathematical terms and try to understand the problem.

Mathematical symbols. Mathematical symbols

Equal to: equal to, the same as, yes.

Unequal: > exceeds

Less than & lt

& gt= not less than

& lt= no more than

Add: add, add, greater than, sum.

Subtract (take away by or as if by deduction), less than, difference.

Multiplication: multiple, multiple, product (number or expression obtained by multiplying two or more numbers or expressions).

Divide: divide, quota (the number obtained by dividing one number by another)

Absolute value: absolute value

Square: Square

Cube: cube

square root

Issuer: Cube Root

Parallel: parallel to

Vertical: perpendicular to (a: at right angles to the horizontal plane: completely upright b: at right angles to a given line or plane)

Digital prefix

1 - uni,mono

2 - bi,du,di

3-3, 3

4-4 road, 4 road

Five five, five five

Hexadecimal, sex

Hapata, September 7th.

10.8

9-Xin 'ao

10 year1February, Dika

Equations and functions

Equation equation

One-dimensional quadratic equation (including quadratic term at most).

Multivariate linear equation (satisfied by the same value of variables) linear equation.

Quadratic equation of binary quadratic equation

Solution, root, zero

volatile variables

Constant (number) constant (something invalid or unclear)

Project $ term

Coefficient (any factor related to a specific factor: a constant factor that is different from the $ TERM of a variable)

Function function

Sequence and set

Arithmetic series (a branch of mathematics that studies non-negative real numbers, including sometimes the sum of transnational cardinality. Application of addition, subtraction, multiplication and division) series

Geometric series Geometry (A: of, relating to, or adapting to the method or principle of geometry B: increasing by geometric series) series.

Set set

Subset subset

Sequence sequence

Ordered items $ term

Includes the first item and the last item of the sequence.

Does not contain the first and last items of the sequence.

Permutation, combination and probability

Replacement (A: the act or process of changing the linear order of a set of ordered objects B: the ordered arrangement of a set of objects)

Combination (an ordered sequence: as a sequence of letters or numbers selected when setting a lock is also a mechanism operated or moved by the sequence. Influence B: Fast Punch Sequence in Boxing C: Any subset of a set, regardless of the order within the subset)

Probability, possibility

number theory

figure

Odd odd

Even even

Integer, integer

Positive integer positive integer

Successive integers (one after another in order)

Natural number natural number

nonzero

positive number

Negative negative number

Rational number (only involving multiplication, division, addition and subtraction, and only the exact number of times)

Irrational number (it can be expressed as an infinite decimal, without a set of conservative numbers repeating indefinitely, nor can it be expressed as a quota of two integers).

real number

Add an attachment

Compound (composed of different parts) number.

prime number

Divider

common factor

prime factor

Common divisor

greatest common divisor

common multiple

least common multiple

Multiply; Multiply; (cause) to breed.

Multiplier multiplier

several times

A is twice as much as B.

A is 3/2 times that of B.

A is 20% more than B. (A-B)/B = 20% A is 20% more than B.

Divide by divide.

Divider divisor

Quotient (number obtained by dividing one number by another)

Remainder remainder

Divisibility

Divisible by ...

Decimal decimal system (counting or proceeding in units of ten: a: based on the number 10; Representing or using the decimal system; Decimal point b: subdivided into 10 or 100 units)

decimal point

Fraction (a numerical representation of a two-digit quota (such as 3/4, 5/8 or 3.234))

Recover decimal

Finite decimal termination decimal

Molecule (the part of a fraction that is higher than a straight line, and it is meaningful to divide it by the denominator)

Denominator (the part below the middle line of a fraction, which acts as a molecular divider)

True fraction propulsion

Error score

Mixed number with fraction

Unit number

Ten digits. Ten digits.

Hundred digit

double-digit

Decimal notation, decimal notation, integer notation based on 10.

A figure of ten tenths.

Simple interest, compound interest and price

simple interest

compound interest

Cost expense

Discount discount

Advance payment; Part of the total price paid at the time of purchase or delivery, with the balance paid later: the first step in the process.

Interest rate interest rate

pricing

Difference difference

rise in price

cut price

Gross profit mark-up (the amount added to the cost price to roughly determine the sales price)

Profit profit

buying price

Retail price

retail price

Depreciation (lowering the price or estimated value)

Algebra algebra

arithmetic mean

geometric mean

Average average

Median median

Majority mode

Expectation expectation

Deviation deviation

Variance variance

Standard deviation

Range range

Base base

Approximate to the nearest approximation

Reduction after reduction

Fall after falling

Say ... to ... reduce ... to. ...

It fell down. Down ...

increased

From ... increase ... to ... improve ... to ...

Increase ... increase ...

Definition definition

Express (as an indication)

different

Expression expression

Express the terms in ... ...

The smallest and most impossible.

maximum

Per capita income (equal to everyone)

Exponential power

In proportion to ...

Ratio ratio

Reciprocal (the product of a pair of numbers (such as 2/3 and 3/2 or 9 and 1/9) is 1)

Round to the tenth place (expressed as an integer-usually used with off)

Continuous, continuous

Tie tie

Two digits. Two digits.

Geometric geometry

Coordinate (a: any one of a set of numbers used to determine the position of a point on a line, a surface or space; B: any of a set of variables used to determine the state of a substance, the motion or momentum of a particle)

The abscissa (the horizontal coordinate of a point in a plane Cartesian coordinate system supported by measurement parallel to the X axis).

Ordinate (Cartesian coordinates supported by measurements parallel to the Y axis)

Analytic geometric coordinate geometry

ramp slope

Y axis intercept

Number lines on the number axis

Quadrant quadrant

angle

Acute angle (characterized by sharpness or severity)

right angle

Obtuse angle (not sharp angle or acute angle)

Vertex (vertex) angle

flat angle

divide equally

Angle bisector (especially bisector: a straight line bisecting an angle or a line segment)

Due north, due north

Length length

High altitude

Size, dimension (a (1): measured in one direction, especially: one of the three coordinates to determine spatial position or four coordinates to determine spatial and temporal position (2): one of a set of properties, the number of which is necessary, It is enough to uniquely determine that each element of a system that is usually a mathematical entity (as a collection of points in a real space or an abstract space) is two-dimensional > There are also parameters or coordinate variables assigned to this property & lt Three dimensions of momentum & gt(3): Number of elements in a base of vector space B: Quality of space expansion: quantity, size C: Realistic or realistic quality D: Range or degree of something expansion:

Perimeter (A: Boundary Diagram of Closed Plane B: Perimeter)

Area area

Distance distance

straight line

Line segment (thinning part between two points in a line)

Midpoint midpoint

Intersect (meet and cross at one point)

Parallel lines

Vertical line (a: at right angles to the horizontal plane: completely vertical b: at right angles to a given line or plane).

Arc (measurement of degrees on the circumference)-used especially in the phrase arc.

Radian (unit of plane angle measurement, equal to the central angle divided by the length of an arc equal to the radius or about 57.3 degrees).

Center in the center

Circle circle

Circumference (circumference of a circle)

Radius (line segment extending from the center of a circle or sphere to the circumference or boundary surface)

Diameter (the length of a straight line passing through the center of an object)

Inscribe (draw as many contact points as possible in a figure)

External qualification (a: draw a line around b: surround it with or as if with a border)

Tangency (if tangent cells are considered, they intersect curves or surfaces at one point)

Clockwise clockwise

Counter-clockwise (viewed from the front, opposite to the direction in which the clock hands rotate)

Concentric (with a common center) circle

Diagonal line (connecting two vertices of non-adjacent straight line graphics or two vertices of polygon graphics that are not on the same plane)

Triangle triangle

right triangle

Hypotenuse (the side of a right triangle opposite to a right angle)

An isosceles triangle (with two equal sides)

equilateral triangle

The midline of a triangle

Quadrilateral (polygon with four sides)

Parallelogram (quadrilateral with parallel and equal opposite sides)

rectangle

Square square

Trapezoidal trapezium

Pentagon (polygon with five corners and five sides)

Hexagon (polygon with six corners and six sides)

Octagonal (polygon with eight corners and eight sides)

Decagon (a planar polygon with 10 corners and 10 sides)

Polygon polygon

regular polygon

Consistent is consistent.

face

Bianside

Airplane. Airplane.

Overlap (extend or cross and cover a part)

Cubic cube

Cuboid cuboid

Cylinder (surface described by a straight line moving parallel to a fixed straight line and intersecting a closed curve of a fixed plane)

Conical cone

range

surface area

Volume volume