Question

Afla numerele necunoscute din fiecare exercitiu.​

Answer 1

Explicație pas cu pas:

ღSalutare!ღ

•2+6×8=2+48=50

•(50+36:9):9=(50+4):9=54:9=6

•6×18+9×18-36=108+162-36=270-36=234

•234:2+222:2-201=117+111-201=228-201=27

•27:3×2+(81:9+71:1)=9×2+(9+71)=18+80=98

•98+5×[4+3×(2+16:2)]=98+5×[4+3×(2+8)]=98+5×(4+3×10)=98+5×(4+30)=98+5×34=98+170=268

Succes !!;)

Answer 2

Răspuns:

Explicație pas cu pas:

2 + 6 × 8 = 2 + 48 = 50 ( a)

( 50 + 36 : 9 ) : 9 = ( 50 + 4 ) : 9 = 54 : 9 = 6 ( b )

6 × 18 + 9 × 18 - 36 = 108 + 162 - 36 = 270 - 36 = 234 ( c )

234 : 2 + 222 : 2 - 201 = 117 + 111 - 201 = 228 - 201 = 27 ( d )

27 : 3 × 2 + ( 81 : 9 + 71 : 1 ) = e

= 9 × 2 + ( 9 + 71 ) =

= 18 + 80 =

= 98 ( e )

98 + 5 × [ 4 + 3 × ( 2 + 16 : 2 ) ] = f

= 98 +  5 × [ 4 + 3 × ( 2 + 8 ) ] =

= 98 + 5 × ( 4 + 3 × 10 ) =

= 98 + 5 × ( 4 + 30 ) =

= 98 + 5 × 34=

= 98 + 170 =

= 268 ( f )