From site: You will be shown 3 numbers and an equation. Type in the correct number in the correct place to complete the equation. (There are 3 difficulty levels of order of operations, covering addition, subtraction, multiplication and division.)
From site: You will be shown 3 numbers and an equation. Type in the correct number in the correct place to complete the equation. (There are 3 difficulty levels of order of operations, covering addition, subtraction, multiplication and division.)