乘法口算题

4X9=7x 6=6X 4=1X2=9x9=2x 6=4X 4=4X9=9x 6=6x8=7x 5=2X9=7X2=6x 5=2X5=1X7=3X 4=4x 1 =2x 4=9X3=6x 6=3X9=