Question

5 Observă modelul şi calculează cum este mai convenabil:
Model: 11 x 2 = 2x11 = 11 + 11 = 22

9x4=
8x3=
65 x 2 =
9x3=

7x2=
8×5=
20 × 2 =
8x4=

5x3=
22x4=
41 x 2 =
30 x 3 =

Answer 1

Răspuns:

9×4=4×9=9+9+9+9=36

8×3=3×8=8+8+8=24

65×2=2×65=65+65=130

9×3=3×9=9+9+9=27

7×2=2×7=7+7=14

8×5=5×8=8+8+8+8+8=40

20×2=2×20=20+20=40

8×4=4×8=8+8+8+8=32

5×3=3×5=5+5+5=15

22×4=4×22=22+22+22+22=88

41×2=2×41=41+41=82

30×3=3×30=30+30+30=90