Final answer:
The task is to place the numbers 1 to 9 into the given equation so that it is valid (equals 66). The correct placement, following order of operations, is: 6 + 13 * 9 ÷ 1 + 8 + 12 * 3 - 2 - 11 + 7 * 5 ÷ 4 - 10 = 66.
Step-by-step explanation:
The question is about placing the numbers 1 to 9 in the given equation to make it valid such that the value of calculation results in 66. The equation provided that needs to be filled in with numbers is: _+ 13 × _ ÷ _ + _ + 12 × _ - _ - 11 + _ × _ ÷ _ - 10 = 66. This requires a strong understanding of order of operations (PEMDAS/BODMAS).
To solve, following the order of operations, you can place the numbers as follows: 6 + 13 * 9 ÷ 1 + 8 + 12 * 3 - 2 - 11 + 7 * 5 ÷ 4 - 10 = 66.
Learn more about Order of Operations