口算练习
18X 5 = 29X 4= 37X 3= 15X 9= 28X 2=
25 X 8 = 34X 3= 48X 7= 58X 3= 37X 2=
17X 8 = 38X 3= 29X 4= 19X 9= 2X 29=
35 X 5 = 43X 7= 55X 9= 13X 10= 19X 9=
14 X 4= 11 X 7= 28X 4= 4X 25= 70X 7=
80 X 5 = 74X 7= 84X 5= 89X 9= 5X 11=
35X 20= 24X 5= 17X 4= 50X 5= 25X 5=
23X 3= 25X 3= 24X 3= 35X 2= 19X5=
27 X 4 = 21 X 8= 35X 3= 55X 1 = 27X 9=
37 X 5 = 45X 9= 57X 3= 3X 24= 55X 8=
12X 7 = 88X 2= 57X 9= 40X 25= 23X 9=
27 X 8 = 35X 5= 44X 7= 15X 2= 25X 9=
38 X 5 = 45X 2= 5X 17= 14X 9= 35X 3=
18X 7 = 28X 4= 4X 25= 74X 7= 14X 5=
39 X 3 = 27X 3= 33X 3= 29X 2= 24X 3=
37 X 9 = 15X 3= 24X 2= 12X 9= 53X 8=
14X 7 = 19X 8= 23X 8= 55X 2= 24X 5=
24 X 5 = 125X 8= 40X 32= 30X 32= 18X 5=
50 X 30= 15X 5= 29X 4= 37X 3= 15X 9=
25 X 40= 18X 5= 28X 2= 25X 8= 44X 7=
19X 5= 28X 4= 35X 3= 15X 9= 28X 2=
23X 8= 34X 3= 44X 7= 23X 3= 37X 4=
12X 8 = 34X 3= 25X 4= 15X 9= 2X 25=
31 X 5 = 43X 7= 55X 9= 13X 10= 19X 9=
14 X 4= 11 X 7= 28X 4= 4X 25= 70X 7=
80 X 5 = 74X 7= 84X 5= 89X 9= 5X 11=
35X 20= 24X 5= 17X 4= 50X 5= 25X 5=
23X 3= 25X 3= 24X 3= 35X 2= 19X5=
27 X 4 = 21 X 8= 35X 3= 55X 1 = 27X 9=
37 X 5 = 45X 9= 57X 3= 3X 24= 55X 8=
12X 7 = 88X 2= 57X 9= 40X 25= 23X 9=
27 X 8 = 35X 5= 44X 7= 15X 2= 25X 9=
38 X 5 = 45X 2= 5X 17= 14X 9= 35X 3=
18X 7 = 28X 4= 4X 25= 74X 7= 14X 5=
39 X 3 = 27X 3= 33X 3= 29X 2= 24X 3=
37 X 9 = 15X 3= 24X 2= 12X 9= 53X 8=
14X 7 = 19X 8= 23X 8= 55X 2= 24X 5=
24 X 5 = 125X 8= 40X 32= 30X 32= 18X 5=
50 X 30= 15X 5= 29X 4= 37X 3= 15X 9=
25 X 40= 18X 5= 28X 2= 25X 8= 44X 7=
18X 5= 29X 4= 34X 3= 15X 9= 28X 2=
25X 8= 34X 3= 48X 4= 58X 3= 34X 2=
14X 8= 38X 3= 29X 4= 19X 9= 2X 29=
35X 5= 43X 4= 55X 9= 13X 10= 19X 9=
14X 4= 11 X 4= 28X 4= 4X 25= 40X 4=
80 X 5 = 44X 4= 84X 5= 89X 9= 5X 11=
35 X 20= 24X 5= 14X 4= 50X 5= 25X 5=
23X 3= 25X 3= 24X 3= 35X 2= 19X5=
24 X 4 = 21 X 8= 35X 3= 55X 1 = 24X 9=
34 X 5 = 45X 9= 54X 3= 3X 24= 55X 8=
12X 4 = 88X 2= 54X 9= 40X 25= 23X 9=
24 X 8 = 35X 5= 44X 4= 15X 2= 25X 9=
38 X 5 = 45X 2= 5X 14= 14X 9= 35X 3=
18X 4 = 28X 4= 4X 25= 44X 4= 14X 5=
39 X 3 = 24X 3= 33X 3= 29X 2= 24X 3=
34 X 9 = 15X 3= 24X 2= 12X 9= 53X 8=
14X 4 = 19X 8= 23X 8= 55X 2= 24X 5=
24 X 5 = 125X 8= 40X 32= 30X 32= 18X 5=
50 X 30= 15X 5= 29X 4= 34X 3= 15X 9=
25 X 40= 18X 5= 28X 2= 25X 8= 44X 4=
19X 5= 28X 4= 35X 3= 15X 9= 28X 2=
23X 8= 34X 3= 44X 4= 23X 3= 34X 4=
12X 8= 34X 3= 25X 4= 15X 9= 2X 25=
31 X 5= 43X 4= 55X 9= 13X 10= 19X 9=
14X 4= 11 X 4= 28X 4= 4X 25= 40X 4=
80X 5= 44X 4= 84X 5= 89X 9= 5X 11=
35X 20= 24X 5= 14X 4= 50X 5= 25X 5=
23X 3= 25X 3= 24X 3= 35X 2= 19X5=
24 X 4 = 21 X 8= 35X 3= 55X 1 = 24X 9=
34 X 5 = 45X 9= 54X 3= 3X 24= 55X 8=
12X 4 = 88X 2= 54X 9= 40X 25= 23X 9=
24 X 8 = 35X 5= 44X 4= 15X 2= 25X 9=
38 X 5 = 45X 2= 5X 14= 14X 9= 35X 3=
18X 4 = 28X 4= 4X 25= 44X 4= 14X 5=
39 X 3 = 24X 3= 33X 3= 29X 2= 24X 3=
34 X 9 = 15X 3= 24X 2= 12X 9= 53X 8=
14X 4 = 19X 8= 23X 8= 55X 2= 24X 5=
24 X 5 = 125X 8= 40X 32= 30X 32= 18X 5=
50 X 30= 15X 5= 29X 4= 34X 3= 15X 9=
25 X 40= 18X 5= 28X 2= 25X 8= 44X 4=
12X 4= 88X 2= 54X 8= 40X 25= 23X 8=
24X 8= 35X 5= 44X 4= 15X 2= 25X 8=
38X 5= 45X 2= 5X 14= 14X 8= 35X 3=
18X 4 = 28X 4= 4X 25= 44X 4= 14X 5=
38 X 3 = 24X 3= 33X 3= 28X 2= 24X 3=
34 X 8 = 15X 3= 24X 2= 12X 8= 53X 8=
14X 4 = 18X 8= 23X 8= 55X 2= 24X 5=
24 X 5 = 125X 8= 40X 32= 30X 32= 18X 5=
50 X 30= 15X 5= 28X 4= 34X 3= 15X 8=
25 X 40= 18X 5= 28X 2= 25X 8= 44X 4=