Can you find the sum [5.5+{-2.3]+[-5.5+2.3} without performing any addition

asked Aug 26, 2016 217k views

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3 votes

$\sf = 5.5-2.3-5.5+2.3 \\ \\ =3.2-5.5+2.3 \\ \\ =3.2+-3.2 \\ \\ =0 \\$

FZs answered Sep 1, 2016

by FZs

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