Resuelve:

a)−3+(−8 )+9− (−5 )=¿b) (−5+3 )−(9−(−3 ) )=¿c) −6+ (1−3+(−7 )−(−6 ) )=¿d)−(−(−1 )+1 )−(1− (−1 ) )=¿

Resuelve:

a)−2 ⋅3 ⋅ (−5 )=¿b)−6 ⋅ (−2 ) ⋅ (−2 )=¿c) (+48 ): (−6 ) : (+4 )=¿d) (−10 ) :5 : (−2 )=¿

Realiza las operaciones:

a) (−8 ) :2−3⋅ (10−6 )=¿b) (−9 )−( (+2 )+(−6 ) ): (−(−1 )−(−1 ) )=¿

Busca los 6 errores que se han cometido en el siguiente ejercicio:

a)−(8−(2−4 ) ):5−3 ⋅ (−4−2 ) :6=(8−2 ) :5−3 ⋅ (−6 )=−6 :2 (−6 )=−3 ⋅ (−6 )=−18

Suprime los paréntesis y luego calcula:

a)12−[18−(−4+10 )+5 ]+[−3+ (15−7 )+2 ]=¿b)−(−8−3 )+(5−4 )−[6+ (−9−20 ) ]=¿c) 14−[9+(−6+10 )− (5−3 )+8 ]−(7−4 )=¿d)10−[6+(−4+20 )−32 ]+ (12−17 )=¿

Calcula:

a)8 · [−5⋅ (−2+4 )−(5−3 ) ] : (−4 )=¿b)28−[ (7−2 )⋅ (15−21 ) ]+6 ⋅ (−4 )=¿c) (8−14 ) : [ (7−12 )+ (15−12 ) ] ⋅7=¿d) [−17+ (11−16 ) ]−[ (−2+7 ) ⋅ (25−20 ) ]=¿

Realiza las siguientes operaciones:

a) (5−2 )⋅ (2−5 ) ⋅ (−2 ) : (−3 )=¿b)12−2 ⋅6+2−5 ⋅ (−6 ) : (−3 )=¿c) −2−2⋅ (1−7 ) : (−2 ) : (−3 )=¿d) (−2+10 ) ⋅3 :6 ⋅ (−2 )−3=¿e) (18−8 )−(5−9 )+3 ⋅ (−3 )=¿

Realiza las siguientes operaciones:

a)7 ⋅5+2 ⋅7−2⋅ 4=¿b)10 ⋅ (3+8−6 )=¿c) (4+8−3+5 ) ⋅4+2=¿d) (6+8 ) : 2+18: (5+4 )=¿

Calcula el resultado de las siguientes operaciones combinadas

a)8 ⋅3 :4 : (10: 2−4 )+20=¿b) (16−3 ⋅4 )+ (15−15 :3 )−(20 :2−8 )=¿c) 4 ⋅2⋅5 :10+ (12+5 ⋅3 )−6 ⋅5=¿d) (3 ⋅4+4 ⋅5 )−(12 :3+20 :4 )+2 ⋅5−6=¿e)4 ⋅ (9−3 )+5⋅ (12−7 )=¿f) 17−3 ⋅ (8−4 )+54 :2=¿

Calcula teniendo mucho cuidado con los paréntesis

a)5 ⋅ [3+2 ⋅ (2+5−3 ) ]−10 ⋅2: 4=¿b) [ (3+12−5 ) :2−4+2 ]⋅ (4+2−1 )=¿c) (1+7−3 ) ⋅ (3+2 )−30 : (5−2+3 )=¿d)4 ⋅ [3+6 ⋅ (5+3−6 ) ]−3⋅ (5−(1+2 ) )=¿

Realiza las operaciones

a) (4+8 ):3−2+(3+5 ) ⋅3=¿b) [6−3 ⋅ (5−3 )+7 ]⋅ 2+2+14c) 7 ⋅ (9−3−4 )−3 ⋅ (4−3+2 )+12 : (8−2 )=¿d) (3+5 ) :2+3 ⋅ (5−2+6 )−5 ⋅ 4=¿