二年级100120小升初天天练
奥数网
2010-01-20 09:44:45
1、口算
5×8 = 24÷6 = 27÷5 = 78+17 = 88-55 =
500+400 = 10-40 = 4×6-14= 36÷6=
1、口算
5×8 = 24÷6 = 27÷5 = 78+17 = 88-55 =
500+400 = 10-40 = 4×6-14= 36÷6=