Question

rapid , dau coroana !​

Answer 1

Explicație pas cu pas:

a)5*[100-6*(60-15*3)]=5*[100-6*(60-45)]=

5*(100-6*15)=5*(100-90)=5*10=50

b) 4*[10*(21*5-85)-93]=4*[10*(105-85)-93]=4*(10*25-93)=4*(250-93)=4*157=628

c) [90+8*(16*3-32)]*17=[90+8*(48-32)*17=

(90+8*16)*17=(90+128)*17=210*17=3570

d)8*[25*(78-19*4)-35]=8*[25*(78-76)-35]=

8*(25*2-35)=8*(50-35)=8*15=120