(78.6-0.786×25+75%×21.4)÷15×1997=______.
(78.6-0.786×25+75%×21.4)÷15×1997=______.
(78.6-0.786×25十75%×21.4)÷15×2011=______.
125×32×25=(______×______)×(______×______)
125×(4+8)=______×______+______×______.
根据算式25×3=75,______和______是______的因数;______是______和______的倍数.
3÷______=______÷24=75%=______折.
0.125=5:______=______%=______÷______.
如果4A=5B,那么 AB=______;5=24÷______=______:15.
在计算890÷(189-25×4)时,应先算______再算______最后算______.
计算:(1)12.5×111-1.5×25=______.(2)49.2492492÷1.23123123=______
a÷b=c(a、b、c均为非零自然数),______是______的因数,______是______的倍数.
(1)39.56°=______°______′______″(2)65°25′12″=______°.