The factor pairs of -540 are (-540,1)(-270,2)(-180,3)(-135,4)(-108,5)(-90,6)(-60,9)(-54,10)(-45,12)(-36,15)(-30,18)(-27,20)(540,-1)(270,-2)(180,-3)(135,-4)(108,-5)(90,-6)(60,-9)(54,-10)(45,-12)(36,-15)(30,-18)(27,-20)
None of them add up to 88.
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88
Well, let's think about this like a happy little math problem. If we add 2 + 4 + 6, we get 12. Then if we multiply that by 3, we get 36. Finally, if we add 1 to that, we get 37. If we multiply 37 by 3 again, we get 111. By subtracting 23, we get 88. And there you have it, a beautiful solution with just two operational signs!
Add up the numbers, then divide by the number of numbers. Answer: 80
1 x 88, 2 x 44, 4 x 22, 8 x 11
Yes, when you add numbers the answer is called a sum. For example, 1 + 2 = 3 and 1900 + 88 = 1988.