Basic arithmetic: tsananguro, mienzaniso

Muchinyorwa chino, tichatarisa tsananguro, mafomula akajairwa uye mienzaniso ye4 basic arithmetic (masvomhu) mashandiro ane manhamba: kuwedzera, kubvisa, kuwanda uye kupatsanura.

Kuwedzera

Kuwedzera ibasa remasvomhu rinounza sum.

Sum (s) nhamba a₁, a₂... a_n inowanikwa nekuwedzera iwo, kureva s = a₁ + a₂ +... + A_n.

• s - sum;
• a₁, a₂... a_n - mazwi.

Kuwedzera kunoratidzwa nechiratidzo chakakosha "+" (pamwe), uye huwandu - "Σ".

muenzaniso: tsvaga huwandu hwenhamba.

1) 3, 5 uye 23.

2) 12, 25, 30, 44.

Mhinduro:

1) 3 + 5 + 23 = 31

2) 12 + 25 + 30 + 44 = 111.

Kubvisa

kubvisa nhamba ndiyo inverse yekuwedzera masvomhu oparesheni, semhedzisiro iripo diferencia (c). Semuyenzaniso:

c = a₁ - b₁ - b₂ –… – b_n

• c - musiyano;
• a₁ - kuderedzwa;
• b₁, b₂... b_n - deductible.

Kubvisa kunoratidzwa nechiratidzo chakakosha "-" (kubvisa).

muenzaniso: tsvaga musiyano pakati penhamba.

1) 62 kubvisa 32 uye 14.

2) 100 kubvisa 49, 21 uye 6.

Mhinduro:

1) 62 – 32 – 14 = 16.

2) 100 – 49 – 21 – 6 = 24.

Kuwedzera

Kuwedzera is arithmetic operation inoverengera nomuvhenganiswa.

Basa (p) nhamba a₁, a₂... a_n inoverengwa nekuwanza, kureva p = a₁ · HAS₂ · … · a_n.

Kuwanza kunoratidzwa nezviratidzo zvakakosha "·" or "x".

muenzaniso: tsvaga chigadzirwa chenhamba.

1) 3, 10 uye 12.

2) 7, 1, 9 uye 15.

Mhinduro:

1) 3 · 10 · 12 = 360.

2) 7 1 9 15 = 945.

Division

Kupatsanura nhamba ndiko kukanganisa kwekuwanza, semhedzisiro yepfupi inoverengerwa voga (d). Semuyenzaniso:

d = a: b

• d - zvakavanzika;
• a – tinogovana;
• b – divider.

Kuparadzana kunoratidzwa nezviratidzo zvakakosha ":" or "/".

muenzaniso: tsvaga quotient.

1) 56 inopatsanurwa ne8.

2) Kamura zana ne100, wozogovanisa 5.

Mhinduro:

1) 56 : 8 = 7.

2) 100 : 5 : 2 = 10 (100:5 = 20, 20:2 = 10).