KA-0076
about 60sIn how many ways can 7 be written as the sum of two different whole numbers bigger than zero? Swapping the order does not make a new way.
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Two steps, or one step plus a trap.
3 in a row to finish this ladder.
0/2 solvedIn how many ways can 7 be written as the sum of two different whole numbers bigger than zero? Swapping the order does not make a new way.