下面的括号里最大能填几?200× <1210800× <2100300× <2300900× <4000.
2=== ÷ .
× =+ = ÷= :5= ×0.35=1.
9: == ÷32=.
= ÷ = %= (小数)= : .
÷15=1.2: == %= (填成数).