Order of operations

The topic  is a topic under the 6th Grade Math Mission. This exercise practices the order of operations in arithmetic.

Types of Problems
There is one type of problem in this exercise:


 * 1) Evaluate the expression: This problem provides a numerical expression using any of a number of arithmetic operations. The student is expected to correctly follow the order of operations and find the correct simplification of the expression.Ooo1.png

Strategies
This exercise is easy to get accuracy badges with firm knowledge of the order of operations. The speed badges are easy also because all the numbers involved are small, and in most cases there is only two steps to the answer.
 * 1) The most common words for order of operations is Parentheses, Exponents, Multiplication and Division, then Addition and Subtraction.
 * 2) The order of operations is also called PEMDAS or GEMDAS (if "grouping symbols" are substituted for "parentheses").
 * 3) The acronym "Please excuse my dear Aunt Sally" is also commonly used.
 * 4) When there are equally strong operations they are all to be performed in order from left to right.
 * 5) The order of operations arises because multiplication is effectively repeated addition, and exponentiation is effectively repeated multiplication.