Final answer:
To solve the equation 543 + 529 = ? + 530, you can subtract 530 from both sides of the equation to find the value of the missing number, which is 542.
Step-by-step explanation:
To solve the equation 543 + 529 = ? + 530, we need to determine the value of the missing number. To do this, we can subtract 530 from both sides of the equation, which gives us 543 + 529 - 530 = ? + 530 - 530. Simplifying the equation gives us 542 = ?.
Therefore, the missing number is 542. So, 543 + 529 = 542 + 530.