68+8=
6+35=
49-8=
5×5-8=
89-40=
52-22=
25+40=
3×4+6=
42-7=
91-5=
50-8=
5×6-7=
画图:
列式计算:
口答:培星小学今年一年级有( )个班。
0.125×16= 1.04×5= 7×12÷7×120=
18.8×20%= ×0.55= 123+﹣123+=