lunes, 22 de noviembre de 2010

El orden de las operaciones

Order of Operations

A numerical expression is a mathematical phrase that includes only numbers and operation symbols.


  Numerical
  Expressions
4+826
371-203+2
3-12+62

When you evaluate a numerical expression, you find its value.

When an expression has more than one operation, you must know which operation to do first. To make sure that everyone gets the same answer, we use the order of operations.



ORDER OF OPERATIONS
  1. Perform operations in parentheses.
  2. Find the values of numbers with exponents.
  3. Multiply or divide from left to right as ordered in the problem.
  4. Add or subtract from left to right as ordered in the problem.



Leeme

Primero puedes seguir este tutorial para comprender como realizar las operaciones donde aparecen paréntesis, sumas, productos, etc



Example

Evaluate this expression.
 
Ejercicios para practicar con el orden de operaciones 

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