Make An Identity: Nine Digits to 100
The task here is to obtain the indicated target numbers by inserting the arithmetic operations of addition (+), subtraction (-), multiplication (*), division (/) or exponentiation (^). For the rules, see the introduction.
Here are twelve problems wherein the targets are to be represented with four all nine non-zero digits in their natural order using only addition and subtraction. Although, all twelve lines look the same at the outset, there are twelve different solutions.
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