7th grade math

What are the four basic operations in number sense?

Addition, Subtraction, Multiplication, Division

What does PEMDAS stand for in order of operations?

Parentheses, Exponents, Multiplication and Division, Addition and Subtraction

How can you simplify fractions?

By finding the greatest common divisor (GCD).

What is necessary when adding or subtracting fractions?

Use common denominators.

What is a ratio?

A relationship between two quantities.

How do you solve proportions?

By cross-multiplying.

What is the Pythagorean theorem formula?

a^2 + b^2 = c^2.

What types of angles are there?

Acute, Obtuse, Right.

What is mean in statistics?

The average of a set of numbers.

What is probability?

The measure of the likelihood of an event occurring.

How do you plot a point on a coordinate plane?

By using an ordered pair (x, y).

What is the area of a rectangle formula?

Length × Width.

Describe the slope-intercept form of a linear equation.

y = mx + b, where m is the slope and b is the y-intercept.

What is the median in a set of data?

The middle value when the data is ordered.

How do you find the mode?

The value that appears most frequently in a data set.

What is a variable in algebra?

A symbol that represents a number in an expression or equation.

How do you check solutions to equations?

By substituting back into the original equation.

What is a scale factor?

A number that scales or multiplies some quantity.

What do you need to consider when reading word problems?

Identifying variables and relationships presented.

What is the importance of checking work after completing a test?

To verify accuracy and catch any mistakes.

What is the formula for calculating the perimeter of a rectangle?

2 × (Length + Width).

How do you convert a fraction to a decimal?

By dividing the numerator by the denominator.

What tool can you use to measure angles?

A protractor.

What does it mean to justify answers in math?

To provide reasoning or explanation for your solutions.

What are like terms in algebra?

Terms that have the same variable raised to the same power.

How can you find the third angle in a triangle?

By subtracting the sum of the other two angles from 180°.

What is equivalent to multiplying both sides of an inequality by a negative number?

Flipping the inequality sign.

What do you need in order to find the volume of a cylinder?

The area of the base and the height.

What is the first step in solving a two-step equation?

Isolate the variable by performing inverse operations.

How can you organize data for analysis?

Using charts or graphs.

What is a key strategy for time management during tests?

Pacing yourself to ensure time for all questions.

What is the concept of financial literacy?

Understanding how to manage money effectively.

What must you do before submitting your test?

Double-check your answers for mistakes.

How do you determine the range of a data set?

By subtracting the smallest value from the largest.

What is a common method for graphing linear equations?

Finding and plotting the x-intercept and y-intercept.

What does 'i.e.' mean when translating word problems?

That is or in other words.

How do you identify inequalities from word problems?

By recognizing words like 'more than', 'less than', etc.

What is the relationship between ratios and proportions?

Ratios can be used to create proportions.

How can you simplify the process of comparing fractions?

By converting them to decimals or using benchmark fractions.

What are the properties of quadrilaterals?

Four sides, sum of interior angles is 360 degrees.

What does it mean to administer a survey?

To collect data systematically from a group.

What is a dependent variable in an equation?

A variable whose value depends on the value of another variable.