Question

5 plus[90plus(20minus 135 impartit la 3)minus 54]ori 6 egal 251
pri metoda mersului invers

Answer 1

Răspuns:

5+[90+(20-135:3)-54]×6=251

[90+(20-135:3)-54]×6=251-5

[90+(20-135:3-54]×6=246

90+(20-135:3)-54=246÷6

90+(20-135÷3)-54=41

90+(20-135÷3)=41+54

90+(20-135÷3)=95

20-135÷3=95-90

20-135÷3=5

135÷3=20-5

135÷3=15

Sper ca te-am ajutat!