Math Review

Front

What is subtraction?

Back

Subtraction is the mathematical operation of finding the difference between two numbers. It is represented by the minus sign (-). For example, in 6 - 2, the result is 4.

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. It is represented by the multiplication sign (x). For example, 3 x 4 means 3 added together 4 times, which equals 12.

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around the rectangle. It is calculated by adding the lengths of all four sides or using the formula: P = 2(length + width).

Front

What is the value of 2^4?

Back

2^4 means 2 multiplied by itself 4 times: 2 x 2 x 2 x 2 = 16.

Front

What is the difference between a whole number and a decimal?

Back

Whole numbers are non-negative numbers without fractions or decimals (0, 1, 2, 3, ...). Decimals represent parts of a whole and can include fractions (e.g., 0.5, 1.2).

Front

What is the result of 12.4 x 6?

Back

The result of 12.4 x 6 is 74.4.

Front

How do you calculate the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. The formula is: Area = length x width.

Front

What is a factor in mathematics?

Back

A factor is a number that divides another number without leaving a remainder. For example, factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What is a multiple in mathematics?

Back

A multiple is the result of multiplying a number by an integer. For example, multiples of 3 are 3, 6, 9, 12, ...

Front

What is the formula for finding the average of a set of numbers?

Back

The average (mean) is found by adding all the numbers together and then dividing by the total count of the numbers. Formula: Average = (sum of numbers) / (count of numbers).