Maths!

Front

What is the formula to calculate the average (mean) of a set of numbers?

Back

To calculate the average (mean), add all the numbers together and then divide by the total count of numbers.

Front

What is the order of operations in mathematics?

Back

The order of operations is 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 the value of 5 + 3 × 2?

Back

The value is 11, because according to the order of operations, you multiply first: 3 × 2 = 6, then add 5: 5 + 6 = 11.

Front

What is the result of 12 - 4 + 2?

Back

The result is 10. You subtract first: 12 - 4 = 8, then add 2: 8 + 2 = 10.

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = length × width).

Front

What is the value of 8 ÷ 2 + 3?

Back

The value is 7. First, divide: 8 ÷ 2 = 4, then add 3: 4 + 3 = 7.

Front

What is a prime number?

Back

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

Front

What is the value of 3²?

Back

The value of 3² (3 squared) is 9, because 3 × 3 = 9.

Front

What is the formula for the perimeter of a square?

Back

The perimeter of a square is calculated by adding all four sides together or by using the formula Perimeter = 4 × side length.

Front

What is the value of 15 - (3 + 2)?

Back

The value is 10. First, calculate inside the parentheses: 3 + 2 = 5, then subtract: 15 - 5 = 10.