87×6的积是 位数,260×5的积的末尾有 个0.
75%= (小数)= (成数)= (折数)= : .
:40= =36÷ =0.45= .
0.6= : = ÷15= %.
12: == %= ÷4=0.75.
(1)= ÷ = %= (小数)(2) ÷ =0.875=(﹣)= %.