2 Efectuează, după model:
3 x 4 = 12
6 x 4 = 2 x 3 x 4 = 2 x 12 =
3 x 3 =
3 x 5 =
6 x 3 =
6x 5=
= 12 + 12 = 24
9x 4 = 3 x 3 x 4 = 3 x 12 =
9 x 3 =
9x 5 =
= 12 + 12 + 12 = 36​

2 Efectuează După Model3 X 4 126 X 4 2 X 3 X 4 2 X 12 3 X 3 3 X 5 6 X 3 6x 5 12 12 249x 4 3 X 3 X 4 3 X 12 9 X 3 9x 5 12 12 12 36 class=

Răspuns :

Răspuns:

1) 3×4=12

2) 6×4=2×3×4=2×12=24

3) 3×3=9

4) 3×5=15

5) 6×3=2×3×3=2×9=18

6) 6×5=12+12=24

7)9×4=3×3×4=3×12=26

8) 9×3=3×3×3=3×9=27

9) 9×5=12+12+12=36