3.98+2=
÷ =
3.6× =
+ =
1÷20%=
20×5.5=
﹣ =
0.23=
× =
2.5×12=
213+199= 52-0.8= 12.5××0.08= 101×45=
29+198= 99×2= 305-199= 2.05×4=
8×12.5%= 0.28÷0.7= ×0=
0.68++0.32= ÷+0.75×4=
9.4-3.2= 2×10%= + = 0.32= 3.14×8=
÷2= 8:13= 1- = × = 870÷29=
24×5=
91+199=
7.8+2.2=
5.3﹣2.7=
9÷0.1=
2.5×0.4=
+0.25=
× =
0.4元5角 3.2分米2.3分米 4.5米3.8米 2年20个月 6平方米599平方分米
这节课要上40分钟,上课时是9:25,应在时分下课。