方程一定是等式,但等式不一定是方程. .(判断对错)
填上适当的数:=5÷3==16÷8==== ÷20.
= :40=12: = %= (小数)
= ÷15== %
6÷ =0.375= :40== %
9÷ =0.6= :60═ %