To evaluate the expression \( 43 \cdot (100 \div 25) - 50 \), we follow the order of operations (parentheses, exponents, multiplication and division from left to right, addition and subtraction from left to right).
-
Calculate \( 100 \div 25 \): \[ 100 \div 25 = 4 \]
-
Now substitute this back into the expression: \[ 43 \cdot 4 - 50 \]
-
Next, calculate \( 43 \cdot 4 \): \[ 43 \cdot 4 = 172 \]
-
Finally, subtract \( 50 \) from \( 172 \): \[ 172 - 50 = 122 \]
Thus, the final answer is: \[ \boxed{122} \]