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OPERACION COMBINADAS

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(7−2)+(6−3)+4

(6+8)−(3+2)+4

(6+3)−(4+2)+5

(9+4)−(2+3)+5

(7−1)+(5+3)−2

(4+9)−(5+3)+6

(6−3)+(8+2)−5

(9+3)−(4+2)+7

(7−3)+(5+2)−6

(8−4)+(3+6)−5

(9+5)−(4+1)+7

(8−3)+(5+4)−6

(7−6)+(8−3)+5

(9−4)+(6+3)−5

(5+4)−(3+1)+8

(5+6)−(2+3)+4

(8+5)−(3+2)+7

(5−2)+(3−1)+9

(6+7)−(2+1)+5

(7+6)−(4+1)+8

(7−2)+(3+6)−4

(8−5)+(4−2)+7

(5−3)+(7+2)−4

(4+7)−(3+2)+6