Question

1+{2+[3∙( 4+5) – 6 + 7 ∙ 8 ] – 9 }
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Answer 1

Răspuns:

Explicație pas cu pas:

1+{2+[3∙( 4+5) – 6 + 7 ∙ 8 ] – 9 }=

= 1 + [2 + (3 ∙ 9 - 6 + 56)- 9] =

= 1 + [2+ (27 - 6 + 56)- 9]=

= 1 + [2+ (21 + 56)-9] =

= 1 + (2+ 77 - 9) =

= 1 + (79 - 9)=

= 1 + 70 =

= 71

Answer 2

Răspuns:

1+{2+[3∙( 4+5) – 6 + 7 ∙ 8 ] – 9 }=

1+[2+(3∙9 – 6 + 7 ∙ 8 ) – 9 ]=

1+[2+(27 – 6 + 56 ) – 9 ]=

1+[2+(21 + 56 ) – 9 ]=

1+(2+77 – 9 )=

1+(79-9)=

1+70=71