Răspuns :

Giuliaraisa112id

Răspuns:

7 ciocolate +5cutii =73lei

2 coicolate+5cutii=53lei

73-53=20lei(costa 5 ciocolate)

20÷5 =4lei(costa o ciocolata)

4×7=28lei(costa 7 ciocolate)

73-28=45lei(costa o 5 cutii)

45÷5=9lei costa 1 cutie

9×8=72lei (8cutii)

Sper ca este de ajutor!

Ycriursuid

Răspuns:

72

Explicație pas cu pas:

7c..........5c.b.............73lei

2c..........5c.b.............53lei

73-53=20

7-2=5

5c........20lei

1c=20:5

1c=4lei

2c.........5c.b......53lei

2×4......5c.b.......53lei

8............5c.b......53lei

5c.b.=53-8

5c.b.=45

1c.b.=45:5

1c.b.=9

8c.b.=9×8

8c.b.=72

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