2*2-1*567:23*3

Let's evaluate the expression step by step:

Expression: 2 * 2 - 1 * 567 : 23 * 3

First, clarify the operations:

• Multiplication (*)
• Subtraction (-)
• Division (:), which is division

To avoid confusion, rewrite with standard notation:

2 * 2 - 1 * 567 ÷ 23 * 3

Following the order of operations (PEMDAS/BODMAS):

1. Multiply and divide from left to right.

Compute each step:

• 2 * 2 = 4
• 1 * 567 = 567
• 567 ÷ 23 ≈ 24.6521739
• 24.6521739 * 3 ≈ 73.9565217

Now, subtract:

4 - 73.9565217 ≈ -69.9565217

Final answer: approximately -69.96