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Problem of the Week
Problem A
Just Filling In

  1. Arrange the numbers \(4\), \(8\), \(1\), \(6\), \(3\), and \(5\) to form two \(3\)-digit numbers with the smallest possible sum.

    Two unknown 3-digit numbers are added and the result is another unknown 3-digit number.

  2. Arrange the numbers \(2\), \(9\), \(1\), \(4\), \(5\), and \(4\) to form two \(3\)-digit numbers with the largest possible sum.

    Two unknown 3-digit numbers are added and the result is an unknown 4-digit number.

  3. Arrange the numbers \(6\), \(9\), \(4\), \(2\), \(8\), and \(7\) to form two \(3\)-digit numbers that add to \(1539\).

For each part, how many different solutions can you find?

Themes: Computational Thinking, Number Sense