Răspuns :

Ami2043id

Răspuns:

a) 10:2=5

5×2=10

2×5=10

b) 2×3=6

6:2=3

6:3=2

c)10×2=20

20:2=10

20:10=2

3×2 ca la 2×3

12:2=6

6×2=12

2×6=12

18:2=9

9×2=18

2×9=18

DenisaO9id

Răspuns:

a)10:2=5

proba:5×2=10

b)2×3=6

proba:6:2=3, 6:3=2

c)10×2=20

proba:20:2=10..,20:10=2

3×2=6

proba:6:2=3..,6:3=2

12:2=6

proba:6×2=12

18:2=9

proba:9×2=18

d)16:23=0,6956521739

7×2=14

proba:14:2=7..,14:7=2

mult succes

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