乘法口诀口算题

5X2=61X3二14X6=3X5二1 x2 二X6二6XX5=4X3X6=2X4=2X6=5=4X6 二2 二6X2=6X4=4X1=5X6=4X2=26X3=4X3=6X4=4X3=Xl=6X6X