2桁と1桁の乗算

(1)

40
×
 
＝
120

(2)

51
×
 
＝
306

(3)

55
×
 
＝
330

(4)

35
×
 
＝
35

(5)

86
×
 
＝
344

(6)

 
×
5
＝
320

(7)

90
×
 
＝
270

(8)

 
×
8
＝
256

(9)

 
×
7
＝
609

(10)

 
×
3
＝
54

(11)

13
×
 
＝
52

(12)

46
×
 
＝
138

(13)

17
×
 
＝
102

(14)

 
×
7
＝
259

(15)

 
×
1
＝
78

(16)

72
×
 
＝
144