Tính giá trị các biểu thức sau 1 cách hợp lý:a) A 2018.20172017-2017.20182018b) frac{423134times846267-423133}{423133times846267+423134}c) B frac{135times1420+45times780times3}{3+6+9+12+...+24+27}d) C frac{24347times78-26times4times3times6000}{4+5+6+7+...+24+25+28}e) frac{1978times1979+1980times21+1958}{1980times1979-1978times1979}f) left(12times194+6times437times2+3times369times4right)divleft(1+5+9+13+...+57+61+65times2-26right)
Đọc tiếp
Tính giá trị các biểu thức sau 1 cách hợp lý:
a) A= 2018.20172017-2017.20182018
b) \(\frac{423134\times846267-423133}{423133\times846267+423134}\)
c) B= \(\frac{135\times1420+45\times780\times3}{3+6+9+12+...+24+27}\)
d) C= \(\frac{24347\times78-26\times4\times3\times6000}{4+5+6+7+...+24+25+28}\)
e) \(\frac{1978\times1979+1980\times21+1958}{1980\times1979-1978\times1979}\)
f) \(\left(12\times194+6\times437\times2+3\times369\times4\right)\div\left(1+5+9+13+...+57+61+65\times2-26\right)\)
