Question

23 903·(15 872:62-255)-21·43=

Answer 1

23 903×1-21×43=23 903 - 21×43=23 903 - 903 = 23 000

Answer 2

To solve this mathematical expression, we need to follow the order of operations or PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) to simplify it step by step.

Here's the solution:

1. Start with the parentheses:

   15,872 : 62 = 256

   23,903 · (256 - 255) - 21 · 43

2. Simplify the expression inside the parentheses:

   256 - 255 = 1

   23,903 · 1 - 21 · 43

3. Multiply and divide from left to right:

   23,903 · 1 = 23,903

   21 · 43 = 903

   23,903 - 903

4. Subtract:

   23,000

Therefore, the result of the expression 23,903·(15,872:62-255)-21·43 is 23,000.