Question

Efectueaza:
(2+16):3-42:7x(14+4-9x2)=
7+3x(122-111)-21x(154-153)+(3+5x4)=
7+7x(6+7:7):7+1x(7+3)-(60-7x7+21:3)=
100-1x(12+12x5)-66:6-0:15+6x6-35=
6x8+0x6+0:0+21:21+23:1-71=​

Answer 1

Răspuns:

Explicație pas cu pas:

( 2 + 16 ) : 3 - 42 : 7 × ( 14 + 4 - 9 × 2 ) = 6

= 18 : 3 - 6 × ( 18 - 18 ) =

= 6 - 6 × 0 =

= 6 - 0 =

= 6

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7 + 3 × ( 122 - 111 ) - 21 × ( 154 - 153 ) + ( 3 + 5 × 4 ) = 42

= 7 + 3 × 11 - 21 × 1 + ( 3 + 20 ) =

= 7 + 33 - 21 + 23 =

= 40 - 21 + 23 =

= 19 + 23 =

= 42

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7 + 7 × ( 6 + 7 : 7 ) : 7 + 1 × ( 7 + 3 ) - ( 60 - 7 × 7 + 21 : 3 ) = 6

= 7 + 7 × ( 6 + 1 ) : 7 + 1 × 10 - ( 60 - 49 + 7 ) =

= 7 + 7 × 7 : 7 + 10 - ( 11 + 7 ) =

= 7 + 49 : 7 + 10 - 18 =

= 7 + 7 + 10 - 18 =

= 24 - 18 =

= 6

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100 - 1 × ( 12 + 12 × 5 ) - 66 : 6 + 0 : 15 + 6 × 6 - 35 = 18

= 100 - 1 × ( 12 + 60 ) - 11 + 0 + 36 - 35 =

= 100 - 1 × 72 - 11 + 36 - 35 =

= 28 - 11 + 36 - 35 =

= 17 + 36 - 35 =

= 53 - 35 =

= 18

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6 × 8 + 0 × 6 + 0 : 0 + 21 : 21 + 23 : 1 - 71 = 1

= 48 + 0 + 0 + 1 + 23 - 71 =

= 48 + 24 - 71 =

= 72 - 71 =

= 1

Impartirea la 0 NU are sens.