Calculate the number 489
NUMBERMANIA: Calculate the number 489 using numbers [1, 1, 3, 3, 54, 544] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers: 1
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Leather splitting machineIn 1808, The leather splitting machine was patented this day by Samuel Parker of Billerica, MA. (located 20 miles northwest of Boston.) |