Complete the Mixed Count Operation

Basic Mathematics Formulas, SD, SMP, SMA, and Umum

This material often appears in exam questions both semester exam and national exam (UN). Therefore, studying and understanding the concept of mixed count operation becomes very important to learn. In working on material problems like this, the most common mistake made by the student is not knowing which part should be solved first.

In working on the problem - the matter of counting operations, sometimes there is still confusion because it does not know whether to complete multiplication, addition, or reduction first. The first thing to consider in answering the question form - the matter of the count operation is the parentheses as well as the properties of the integer count operation. If the problem is a parenthesis, then the counting operation that is in the parenthesis must be completed first. However, in some matters it is sometimes found that mixed counting operations are not bracketed. To understand these questions we must understand the properties of the arithmetic operations in integers, including:

1. The sum (+) and subtraction (-) operations are considered to be equally strong, so that the operation on the left should be completed first.

2. Multiplication (x) and division (:) operations are considered to be equally strong, meaning that the operation on the left should be done first.

3. The multiplication operation (x) and division (:) position is stronger than the addition (+) and subtraction operations (-), so the multiplication (x) and division (:) operations are solved first and then the addition (+) operation and subtraction (-).