KaReem 7th Grade Math

What is a fraction?

A fraction represents a part of a whole or a division of quantities.

Define the order of operations.

The order of operations is the rules that determine the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right) — abbreviated as PEMDAS.

What is an integer?

An integer is a whole number that can be positive, negative, or zero.

What is the formula for the area of a triangle?

The area of a triangle is given by the formula: $A = \frac{1}{2} \times base \times height$.

What is the Pythagorean theorem?

The Pythagorean theorem states that in a right triangle, the square of the hypotenuse (c) is equal to the sum of the squares of the other two sides (a and b): $c^2 = a^2 + b^2$.

Define a variable in mathematics.

A variable is a symbol used to represent an unknown value in an equation or expression.

What is a ratio?

A ratio is a comparison between two quantities, often expressed as a fraction.

What is an equation?

An equation is a mathematical statement that asserts the equality of two expressions, usually with one or more variables.

What is a proportion?

A proportion is an equation that states two ratios are equal.

What is a percent?

A percent is a ratio expressed as a fraction of 100.

Define absolute value.

The absolute value of a number is the distance of that number from zero on the number line, disregarding the sign.

What is a prime number?

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

What is a composite number?

A composite number is a natural number greater than 1 that is not prime; it has at least one positive divisor other than 1 and itself.

What is a variable expression?

A variable expression is a mathematical phrase that can contain numbers, variables, and operation symbols but does not have an equals sign.

What are like terms?

Like terms are terms that contain the same variable(s) raised to the same power; they can be combined through addition or subtraction.