How is 4 2 12 11 equal to 24

How is 4 2 12 11 equal to 24


[4×（11－2）]－12＝24



The result of 2, - 4,12,1 is equal to 24. How to calculate?


(2+1)*[12+(-4)]=24



For rational numbers a and B, the operations are defined as follows: a * B equals (a + b) A-B, then (- 3) * 4 equals ()
*A font size is a symbol and does not mean anything.


Let a = - 3 and B = 4 be substituted for calculation
(-3)*4=(-3+4)+(-3-4)=-7
Or a * b = (a + b) + (a-b) can be reduced to a * b = 2A and then substituted into the calculation

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