1030

70100

110121

2 Χ 8 =16

8 4 12 16 20 50

8 : 2 =42 Χ 4 =84 : 2 =2

2 Χ 12 =2412 : 2 =6

2 Χ 16 =3216 : 2 =8

2 Χ 20 =4020 : 2 =10

2 Χ 50 =10050 : 2 =25

88

8 Χ 8 =64

94

9 Χ 4 =36 ή4 Χ 9 =36

40 2440 + 24=64

5

10 5

5 10 5 5

50 25

50 + 25=75