(3)
5 x 1 = 5 (5 x 1 = 5)
8 2 16 (8 x 2 = 16)
(4)
7 x 2 = 14 = 7 (7 x 2 = 14)
(14 : 2 = 7)
8 5 40 20 (8 x 5 = 40)
(40 : 2 = 20)
(5)
4 x 3 = 12
(4 x 3 = 12)
5 5 25
(5 x 5 = 25)
(6)
1x3= 3=1
(1 x 3 = 3)
(3 : 3 = 1)
3 8 24 8
(3 x 8 = 24)
(24 : 3 = 8)
c.
(1)
7x1=7=31
(7 x 1 = 7)
(7 : 2 = 3 1)
2 2
2
(1 x 2 = 2)
2
(2)
10 x 1 = 10 = 3 1
3 3
3
(3)
11 x 1 = 11 = 2 3
4
4
4
3
(4)
9 x 2 = 18 = 6 (or 9 x 2 = 6)
3
3
1 3
1
5
(5)
15 x 2 = 30 = 10 (or 15 x 2 = 10)
`
3
3
1 3
1
3
(6)
6 x 1 = 6 = 3 (or 6 x 1 = 3)
8 8 4
1 8 4
4
9
1
d. (1)
3 3 x 2 1 = 18 x 5 = 90 = 9 (or 18 x 5 = 9 = 9)
5
2
5 2 10
5 2 1
1
1
(2)
9 x 9 1 = 9 x 19 = 171 = 85 1
2 1
2
2
2
(3)
3 1 x 2 1 = 25 x 9 = 225 = 7 1
8
4
8 4
32
32
3
5
(4)
2 1 x 3 1 = 9 x 10 = 90 = 7 6 = 7 1 (or 9 x 10 =15)
4
3 4
3 12 12
2
4 3
2
2
1
(5)
5 x 4 1 = 5 x 17 = 85 = 21 1
4 1
4 4
4
MD0904
1-23