Question 2
Mark fills the seven boxes with numbers from 1 to 7 so that the sum is 100. Find the largest two-digit number in the addition.
Interpretation used for self-study: use each digit 1 through 7 exactly once, and find the greatest possible two-digit addend over all valid fillings. The source does not state these conditions explicitly.
Interpretation used for self-study: use each digit 1 through 7 exactly once, and find the greatest possible two-digit addend over all valid fillings. The source does not state these conditions explicitly.