乘法,乘法,5X1= 2X3= 5x8= 5X4= 3X4= 4X5= 6X5= 4X7= 10X1= 2X4= 5X1= 3X5,1. 划圆圈 5X3=? 000000000000000=15,乘法运算，来试一试吧,6X1= 5X5= 5X3= 6X4= 9X2= 6X4= 3X1= 10X7= 8X7= 8X3= 7X1= 6X4,乘法口诀 任何一个数乘以1都得原来的数 任何一个数下乘以0都得0,试一试,口答： 0X0= 5X1= 2X0= 4X1= 100X1= 5X1= 9X0= 72X0 = 9X0= 68X1= 90X1= 6X0,作业,口答 1. 9X0= 2. 10X6= 3. 8X8= 4. 10X0= 5. 5X5= 6. 6X3= 7. 5X0= 8. 9X7= 9.10X7= 10.10X8= 11. 4X4= 12.6X6,1X2= 6X4= 5X6= 4X5= 5X6= 4X1= 4X8= 1X3= 5X1= 5X4 = 6X8= 4X0
