Question

Calculati suma ,diferenta si orodusul numerelor,a și b stiind ca :a=15-3×6:(3×3×3:3+0:5)+30:(3:3+5)= b)=25+[7×2×18:2-5×(5×4-36:3)]=

Answer 1

a=15-3×6:9+30:6
a=15-18:9+5
a=15-2+5⇒a=13+5=18

b=25+(7×2×18:2-5×12)
b=25+(14×9-60)
b=25+(126-60)⇒b=25+66=91

a+b=18+91=109

b-a=91-18=73

a×b=18×91=1638