Use of cookies

We use cookies to improve and analyse your browsing experience on our web. You can accept these cookies, reject them or choose your settings by clicking on the corresponding buttons. Please note that rejecting cookies may affect your browsing experience. For more information you can consult our Cookies policy.

Configure cookies

Cookies are an essential part of how our web works. The main goal of cookies is to make your browsing experience more comfortable and efficient and to improve our services and the web itself.
Here you can find all the information about the cookies we use and you can activate and/or deactivate them according to your preferences, except for those cookies that are strictly necessary for the operation of the web. Blocking some cookies may affect your experience on the web and how the site works. For more information you can visit our Cookie Policy.

Strictly necessary (technical) cookies

These Cookies are necessary for the web to function and cannot be disabled on our systems. They are generally only set up in response to actions you may take such as requesting services, setting your privacy preferences, logging in or completing forms. You can set your browser to block or warn you about these cookies, but some parts of the web will not work. Information about Cookies.

Analytical cookies

These Cookies allow us to count the number of visits and traffic sources so that we can measure and improve the performance of our site. They help us to find out which pages are the most popular and least popular, and to see how visitors move around the web. All information collected by these Cookies is aggregated and therefore anonymous. If you do not allow these Cookies we will not know when you visited our web. Information about Cookies.

Third party cookies

These cookies are used to analyse your activity in order to show you personalised advertisements. Information about Cookies.

Accept Decline Configure cookies Confirm selected
Search
×
Notes
Search
There are no notes
  • Operacions combinades
  • To customise Pencil press Alt + Down Arrow
  • To customise Highlighter press Alt + Down Arrow

    Change theme

    Error - please check your internet connection...
    Back

    Blink Help

    x
    Error - please check your internet connection...

    How can we help you?

    No results

    View full manual

    Couldn't find what you were looking for?

    Please describe the issue you are experiencing and provide as many details as possible. Let us know the book, class, access device, licence code, username, used browser or if it occcurs in our app:

    Thickness:
    Font size:
    Filter
      No resources found
      Font size:
      Revision mode

      Revision mode

      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      OPERACIONS COMBINADES

      5. OPERACIONS COMBINADES

      Aprendràs a...
      • Fer operacions combinades amb nombres enters.

      Operacions sense parèntesis

      Igual que quan operem amb nombres naturals, per a fer operacions combinades amb nombres enters seguim un ordre.

      4 + 6 : (−2) ⋅ 5 − 4 ⋅ 3 + 7

      Operacions amb parèntesis

      Quan en una expressió amb nombres enters hi ha operacions agrupades amb parèntesis, efectuem les operacions seguint aquest ordre:

       

      6 + (3 − 8) ⋅ 2 − 5 − 12 : (−3)

      Recorda

      L'ordre en el qual resolem operacions combinades amb nombres naturals és el següent:

      1. Parèntesis.
      2. Multiplicacions i divisions (d'esquerra a dreta).
      3. Sumes i restes (d'esquerra a dreta).
      Exercici resolt 

      Fes la següent operació combinada.

      5 + 3 ⋅ (3 ⋅ 2 − 10) − (4 + 3) ⋅ 2 + 9

      Solució

      Videotutorial. Operació combinada
      Exercici resolt 

      Fes l'operació següent.

      3 − (4 − (12 − 15) ⋅ 3) − 8 : (−2) − 5

      Solució

      En primer lloc es resolen els parèntesis, respectant l'ordre a l'interior.

       
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 37

      Calcula i selecciona la resposta correcta.

      a) 3 − 4 ⋅ 2 =

      b) −3 + 4 ⋅ 2 =

      c) 3 − 4 ⋅ (−2) =

      d) 3 − (−4) ⋅ 2 =

      e) −3 + (−4) ⋅ 2 =

      f) 3 − (−4) ⋅ (−2) =

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 38

      Selecciona la solució correcta de les següents operacions combinades.

      a) −12 : 4 + (−3) ⋅ 2 − 1 =
      b) −6 + 18 : (−6) + 8 =
      c) (−5) ⋅ (−4) + 7 − 8 ⋅ 2 =
      d) 9 : (−3) − 1 + 4 ⋅ 2 − 5 =
      e) 28 : 7 − 3 ⋅ (−5) − 16 : 2 + 1 =

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 39

      Opera respetant l'ordre de les operacions i selecciona'n la solució correcta.

      a) 5 − (4 − 6) + 3 + (8 − 12) − 1 =
      b) −(6 − 10) + 5 − 8 − (10 − 7) =
      c) −9 − (12 − 10 + 4) − (14 − 20) + 10 =
      d) 11 + (5 − 7) − (10 − 19 + 3) − (2 − 5) =
      e) −20 − 4 + (4 − 8) − (5 − 7 − 6) + 2 =

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 40

      Calcula i selecciona la solució correcta.

      a) 12 − 3 ⋅ (5 − 7) − 19 =
      b) −6 + (8 − 5) ⋅ (−2) − (5 − 9) : 2 + 1 =
      c) 1 + 7 − (13 − 17) ⋅ (6 − 8) − 4 =
      d) 4 + (−3) ⋅ (7 − 10) + 2 =

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 41

      Calcula el resultat de les operacions següents.

      a) −16 : 4 − (4 − 9) ⋅ 6 : 3 =
      b) 1 + 8 : (6 − 10) ⋅ (−2) =
      c) 4 ⋅ 3 − 5 ⋅ 8 : (−4) + 1 =
      d) −9 − (5 − 7) ⋅ 3 : (−2) + 5 =

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 42

      Fes aquestes operacions i selecciona'n el resultat correcte.

      a) 12 − (−3) + (−5) ⋅ 6 =
      b) −15 − 18 : (1 + (−10)) − 5 =
      c) −3 + (−5) − (5 − 7 + (−2)) ⋅ (−1) =
      d) 4 ⋅ (−3) + 1 − (−5) + (4 − 5) ⋅ 3 =

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 43

      Resol aquestes operacions.

      a) 7 − 2 ⋅ (6 − 4 ⋅ 2) + 3 =
      b) (5 − 3 ⋅ 2 + 1) ⋅ 4 − 3 =
      c) 10 + 4 ⋅ (7 − 5 ⋅ 3) + 11 =
      d) 12 + (6 − 4 ⋅ 2) : (−2) − 13 =

        -11 14 0 -3

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 44

      Calcula.

      a) 12 − (−9 + (−3) ⋅ 2) − 5 + (7 − 12)=
      b) −25 + 7 − (4 − 3 ⋅ 2) + (5 − 4) ⋅ (−2)=
      c) −12 + 5 ⋅ (5 − 7) − (4 ⋅ 3 − 7) + 1=
      d) 7 + 5 − (5 ⋅ 3 − 15) ⋅ 4 − (7 − 10)=
      e) 17 − (12 − 6) − 4 ⋅ (3 − 4 ⋅ 2) + 3=
      f) 2 ⋅ (−3) + (18 : 2 − 10) ⋅ (6 − 9)=

        34 17 -18 -26 15 -3

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 45

      Opera.

      a) −4 ⋅ 2 − (5 − (9 + 6) : 5) + 2=
      b) 12 − (4 − (13 − 7) : (−3) + 2) − 5=
      c) 20 : (−10) + (5 ⋅ (6 − 8) + 7) − 5 ⋅ 2=
      d) 18 : (4 : (7 − 5) ⋅ (4 − 3) + 1) − 4=

        -15 -1 2 -8

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

      Activitat 46. Desafiament

      Marc i Paula han utilitzat dues calculadores diferents per a fer aquesta operació: 

      5 + 3 ⋅ (−2) − 6


      La calculadora de Marc li dóna com a resultat −7, mentre que Paula obté −22.

      Si els dos han introduït les dades en la calculadora en el mateix ordre, per què obtenen dos resultats diferents?

      Done
      Operacions combinades
      Nombres enters
      Without background sound
      Logo

       

      Emplena els espais en blanc.

      Qui té raó, Marc o Paula?

        Marc

      Done

      ,
      You have completed the lesson!

      Below is the time you have spent on the activity and the score you obtained.

      Time spent

      Score

      1. 1
      2. 2
      3. 3
      4. 4
      5. 5
      6. 6
      7. 7
      8. 8
      9. 9
      10. 10
      11. 11
        Eraser
        Rich text editor
        close