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Challenge:
Insert the math symbols between certain numbers to create an equation: 743 ( =, -) Answer : 7 - 4 = 3 6915 ( +, =) Answer : 6 + 9 = 15 5371 ( -, +, =) Answer : 5 + 3 - 7 = 1 87654321 ( -, +, -, =) Answer : 93723522 (+, +, -, =, -) Answer : 2582645 (-, -, =, +, +) Answer : |