Mathematics, 20.10.2021 07:10, jaidaarmstrong

Encierra las operaciones que esntan incorrectas +8 + (- 18) = + 10 -12 + (+ 8) =
-4-7 + (+ 10) = +3 -8 + (- 20) = -12-15
+ (- 8) = -7 -2 + (- 18) = -20

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Encierra las operaciones que esntan incorrectas +8 + (- 18) = + 10 -12 + (+ 8) =
-4-7 + (+ 1...