(47+29-16):6=10
(32-16+24):8=5
45:9-5+489=489
(94-39+15):5=14
49:7+(80-69)-5=13
85-(82-28):6-14=62
56:8×7+3×(94-77)=76
700-10×(95:5)=510
1)389-89=300
2)563+300=863
А) (18^4*10^2)/(15^3*12^5)=(3^8*2^4*2^2*5^2)/(3^3*5^3*2^10*3^5)=
=(3^8*2^6*5^2)/(3^8*5^3*2^10)=1/(5*2^4)=1/(5*16)=1/80
б) (10^3*9^2)/(6^3*5^2)=(2^3*5^3*3^4)/(2^3*3^3*5^2)=5*3=15
в) 4*3^6+11*26^2 + 7*9^3=
4*729+11*676+7*729=11*729+11*676=
=11*(729+676)=11*1405=15455
4:0,128=31,25
31,25+14628,25=14659,5
14659,5:1,011=14500
14500•0,00008=1,16
1,16+6,84=8
8:12,5=0,64