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3. Calculează ,, a + b - c" ştiind că: a = 81 x 3:9+216:4
b = 312: 3 + 715:5
C = 36 x 12 – 15 x 12​

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Dianageorgiana794ask

Răspuns:

a = 81 x 3:9+216:4

a=27+54=>a=81

b = 312: 3 + 715:5

b=104+143=>b=247

c= 36 x 12 – 15 x 12​

c=432-180=>c=252

a+b-c=81+247-252=76

Crintina72ask

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Salutare!

a=81×3:9+216:4

a=243:9+54

a=27+54

a=81

b=312:3+715:5

b=104+143

b=247

c=36×12-15×12

c=432-180

c=252

a+b-c=?

81+247-252=328-252=76

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