Conjuntos Numericos Ejercicios

Realizar las siguientes operaciones con números enteros:

1. (3 − 8) + [5 − (−2)] =

= (-5)+ [5+2]

= (-5)+7

= 2

2. 5 − [6 − 2 − (1 − 8) − 3 + 6] + 5 =

= 5 − [4 − (− 7) − 3 + 6] + 5

= 5 − [4+7− 3 + 6] + 5

= 5 − [14] + 5

= 5-14+5

= -4

3. 9 / [6 / (− 2)] =

= 9 / [-3]

= -3

4. [(−2)5 − (−3)3]2 =

= [−32 − (−27)]2

= [−32 − (−27)]2

= [−32 +27]2

= [−5]2

= 25

5. (5 + 3 • 2 / 6 − 4 ) • (4 / 2 − 3 + 6) / (7 − 8 / 2 − 2)2 =

= (5 + 6/ 6 − 4 ) • (2 − 3 + 6) / (7 − 4 − 2)2

= (5 + 1 − 4 ) • (5) / (1)2

= 2 • 5

= 10

6. [(17 − 15)3 + (7 − 12)2] / [(6 − 7) • (12 − 23)] =

= [(2)3 + (−5)2] / [(−1) • (−11)]

= [(8) + (25)] / [11]

= 33/11

= 3

7. (7 − 2 + 4) − (2 − 5) =

= (9) − (−3)

= 9 + 3

= 12

8. 1 − (5 − 3 + 2) − [5 − (6 − 3 + 1) − 2]=

= 1 − (4) − [5 − (4) − 2]

= 1 − 4 − [− 1]

= 1 − 4 + 1

= -2

9. −12 • 3 + 18 / (−12 / 6 + 8) =

= −36 + 18 / (−2 + 8)

= −36 + 18 / (6)

= −36 + 3

= −33

OPERACIONES COMBINADAS CON LOS NUMEROS NATURALES

1. 27 + 3 • 5 − 16 =

= 27 + 15 − 16

= 26

2. 27 + 3 − 45 / 5 + 16 =

= 27 + 3 − 9 + 16

= 37

3. (2 • 4 + 12) (6 − 4) =

= (8 + 12) (6 − 4)

= (20) (2)

= 40

4. 3 • 9 + (6 + 5 − 3) − 12 / 4 =

= 27 + (8) − 3

= 32

5. 2 + 5 • (2 • 3)3 =

= 2 + 5 • (6)3

= 2 + 5 • 216

= 2 + 1080

= 1082

6. 440 − [30 + 6 (19 − 12)] =

= 440 − [30 + 6 (7)]

= 440 − [30 + 42]

= 440 − 72

= 368

7. 2 { 4 [7 + 4 (5 • 3 − 9)] − 3 (40 − 8)} =

= 2 { 4 [7 + 4 (15 − 9)] − 3 (32)}

= 2 { 4 [7 + 4 (6)] − 3 (32)}

= 2 { 4 [7 + 24] − 96}

= 2 { 4 [31] − 96}

= 2 { 124 − 96}

= 2 { 28}

= 56

8. 7 • 3 + [6 + 2 • (23 / 4 + 3 • 2) − 7 • 4] + 9 / 3=

= 21 + [6 + 2 • (8 / 4 + 3 • 2) − 28] + 3

= 21 + [6 + 2 • (2+ 6) − 28] + 3

= 21 + [6 + 2 • (8) − 28] + 3

= 21 + [−6] + 3

= 21 − 6 + 3

= 18

IV.EJERCICIOS REGLA DE TRES

1. El precio de un medicamento en cierta droguería es

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