Mubhuku rino, tichatarisa mitemo yekutanga yekuvhura mabhuraketi, tichiiperekedza nemienzaniso kuti tinzwisise zviri nani zvinyorwa zvedzidziso.
Bracket kuwedzera - kutsiva chirevo chine mabhuraketi chine chirevo chakaenzana nacho, asi chisina mabhuraketi.
Mitemo yekuwedzera bracket
Mutemo 1
Kana pane "plus" pamberi pemabheji, ipapo zviratidzo zvenhamba dzose mukati mezvigadziro zvinoramba zvisina kuchinjwa.
Tsanangudzo: Avo. Kuwedzera nguva plus kunoita kuti plus, uye kuwedzera nguva komisi inoita minus.
mienzaniso:
6 + (21 – 18 – 37) =6 + 21 – 18 – 37 20 + (-8 + 42 – 86 – 97) =20 – 8 + 42 – 86 – 97
Mutemo 2
Kana paine minus pamberi pemabhureki, ipapo zviratidzo zvenhamba dzese mukati mezvibodzwa zvinodzoserwa kumashure.
Tsanangudzo: Avo. Koniti kanhambo kuwedzera ndiminus, uye minus kanhambo kuwedzera kuwedzera.
mienzaniso:
65 - (-20 + 16 - 3) =65 + 20 – 16 + 3 116 – (49 + 37 – 18 – 21) =116 – 49 – 37 + 18 + 21
Mutemo 3
Kana paine chiratidzo che "kuwanza" pamberi kana mushure memabhuraketi, zvese zvinoenderana nekuti ndezvipi zviito zvinoitwa mukati mavo:
Kuwedzera uye/kana kubvisa
a ⋅ (b – c + d) =a ⋅ b – a ⋅ c + a ⋅ d (b + c – d) ⋅ a =a ⋅ b + a ⋅ c – a ⋅ d
Kuwedzera
a ⋅ (b ⋅ c ⋅ d) =a ⋅ b ⋅ c ⋅ d (b ⋅ c ⋅ d) ⋅ a =b ⋅ с ⋅ d ⋅ a
Division
a ⋅ (b : c) =(a ⋅ b) : p =(a : c) ⋅ b (a: b) ⋅ c =(a ⋅ c) : b =(c : b) ⋅ a
mienzaniso:
18 ⋅ (11 + 5 – 3) =18 ⋅ 11 + 18 ⋅ 5 – 18 ⋅ 3 4 ⋅ (9 ⋅ 13 ⋅ 27) =4 ⋅ 9 ⋅ 13 ⋅ 27 100 ⋅ (36 : 12) =(100 ⋅ 36) : 12
Mutemo 4
Kana paine chiratidzo chekuparadzanisa pamberi kana mushure memabhuraketi, saka, semutemo uri pamusoro, zvese zvinoenderana nekuti ndezvipi zviito zvinoitwa mukati mavo:
Kuwedzera uye/kana kubvisa
Kutanga, chiito chiri muvabereki chinoitwa, kureva kuti mugumisiro wehuwandu kana kusiyana kwenhamba kunowanikwa, zvino kupatsanurwa kunoitwa.
a : (b – c + d)
b – с + d = e
a: e = f
(b + c – d) : a
b + с – d = e
e: a = f
Kuwedzera
a: (b ⋅ c) =a: b:c =a: c:b (b ⋅ c) : a =(b : a) ⋅ p =(pamwe ne: a) ⋅ b
Division
a :(b :c) =(a: b) ⋅ p =(c : b) ⋅ a (b:c) :a =b :c:a =b: (a ⋅ c)
mienzaniso:
72 : (9 - 8) =72:1 160 : (40 ⋅ 4) =160:40:4 600 : (300 :2) =(600 : 300) ⋅ 2