Sagot :
equation 1 ;opera 1 ;schema 3 ;probleme 4
equation 2 ;oper 4 ;schema 2 ;probleme 3
equation 3 ;operation 2 ;schema 1 ;probleme 1
equation 4 ;operat 3;schema 4 ; probleme 2.
probleme 1
12:3 = 4 euro le stylo
probleme 2
12+3=15 m
probleme 3
12x3=36go
probleme 4
12-3=9 photos ce matin