Question

pune paranteze astfel incat egalitatile sa fie adevarate 2 ×
27÷3+7-1=6 b) 5×4÷2+8-2=40 c) 5×4÷2+8-2=0

Answer 1

Răspuns:

Explicație pas cu pas:

( 2 × 27 ) : ( 3 + 7 - 1 ) = 6

= 54 : ( 10 - 1 ) =

= 54 : 9 =

= 6

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b)

5 × ( 4 : 2 + 8 - 2 ) = 40

= 5 × ( 2 + 8 - 2 ) =

= 5 × ( 10 - 2) =

= 5 × 8 =

= 40

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c)

5 × 4 : (2 + 8) - 2 = 0

= 20 : 10 - 2 =

= 2 - 2 =

= 0