Răspuns :

Răspuns:

18:2=3x3

4x2=16:2

9x1=81:9

42:7=36:6

45:9=35:7

36:4=3x3

a)18÷2=...×3

18÷2÷3

9÷3=3

4×2=16÷...

8=16÷...

8=16÷2

b)9×...=81÷9

9×...=9

9×1=9

42÷7=36÷...

6=36÷...

6=36÷6

c)45÷...=35÷...

45÷9=35÷7

5=5

36÷4=3×...

9=3×...

9=3×3