6th Grade Math

Front

What is a random survey?

Back

A random survey is a method of collecting data where every individual in a population has an equal chance of being selected. This helps to avoid bias and ensures that the results are representative of the entire population.

Front

How do you calculate the percentage of success?

Back

To calculate the percentage of success, divide the number of successful attempts by the total number of attempts, then multiply by 100. For example, if Kylie made 15 out of 25 shots, the calculation is (15/25) x 100 = 60%.

Front

Evaluate: 7² x (9 - 4) + 10/2 - 1

Back

249

Front

What does it mean to simplify an expression?

Back

Simplifying an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

Simplify: 6(2x + 3y) + 3(x - y)

Back

15x + 15y

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as a numerator (top number) over a denominator (bottom number). For example, 1/4 means one part out of four equal parts.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and then multiply by 100. For example, 1/4 = (1 ÷ 4) x 100 = 25%.

Front

What is the order of operations in math?

Back

The order of operations is a set of rules that dictates the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value in mathematical expressions or equations. For example, in the expression 2x + 3, 'x' is the variable.

Front

What is a mathematical expression?

Back

A mathematical expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value. For example, 3x + 5 is an expression.