a. \( 51+(19+46)= \)

To solve the expression \( 51 + (19 + 46) \), start by calculating the value inside the parentheses. Adding 19 and 46 gives you 65. Now, you have \( 51 + 65 \). When you add those two numbers together, the final result is 116! Did you know that addition is one of the foundational operations in mathematics, often introduced in early education? It helps build a strong base for more complex concepts, such as algebra and calculus, paving the way for problem-solving skills throughout life! And speaking of addition, be mindful of parentheses! They indicate the order of operations, ensuring that you perform calculations in the correct sequence. A common mistake is to forget this order, which could lead to incorrect results. So, always keep an eye on those little symbols!