8:(7-9)x[4+(-4)] = ?
4x[(-4):(-2)-(-3)+(-6)] = ?
{2+5x[(-2)-(-7)]}:(-9) = ?
6x[5-(-5)+2]:8 = ?
[7x8-(-10]:6+(-6) = ?
9x[3-5+(-2)]:(-3) = ?
[5:(-5)-(-8)]x[8+(-6)] = ?
[8x(-4)-(-9)+(-7)]:3 = ?
[6-4+8:(-8)]x(-10) = ?
[(-9)-(-5)]x(-6):[(-10)+6] = ?
(imi trebuie doar rezolvat!
Va rog sa rezolvati macar o parte, am nevoie neaparat rapid. dau 30 puncte!
Răspunsuri la întrebare
Răspuns:
Explicație pas cu pas:
8 : ( 7 - 9 ) × [ 4 + ( - 4) ] = 8 : ( - 2) × ( 4 - 4) = ( - 4) × 0 = 0
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4 × [ ( -4) : ( - 2 ) - ( - 3 ) + ( - 6) ] = 4 × ( 2 + 3 - 6) = 4 × (5-6) = 4 ×(-1) = - 4
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{2 + 5 × [( - 2) - ( - 7) ] } : ( - 9) = - 3
= [ 2 + 5 × ( - 2 + 7) ] : ( - 9) =
= [ 2 + 5 × ( + 5) ] : ( - 9 ) =
= ( 2 + 25) : ( - 9) =
= 27 : ( - 9) =
= - 3
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6 × [ 5 - ( - 5 ) + 2 ] : 8 = 9
= 6 × ( 5 + 5 + 2 ) : 8 =
= 6 × 12 : 8 =
= 72 : 8 =
= 9
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[ 7 × 8 - ( - 10 ) ] : 6 + ( - 6 ) = 5
= ( 56 + 10 ) : 6 - 6 =
= 66 : 6 - 6 =
= 11 - 6 =
= 5
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9 × [ 3 - 5 + ( - 2 ) ] : ( - 3 ) = 12
= 9 × ( - 2 - 2 ) : ( - 3 ) =
= 9 × ( - 4 ) : ( - 3 ) =
= ( - 36) : ( - 3 ) =
= 12
_____________________________
[ 5 : ( - 5 ) - ( - 8) ] × [ 8 + ( - 6) ] = 14
= ( - 1 + 8 ) × ( 8 - 6) =
= 7 × 2 =
= 14
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[ 8 × ( - 4) - ( - 9 ) + ( - 7) ] : 3 = - 10
= ( - 32 + 9 - 7) : 3 =
= ( - 23 - 7 ) : 3 =
= ( - 30 ) : 3 =
= - 10
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[ 6 - 4 + 8 : ( - 8 )] × ( - 10 ) = - 10
= ( 2 - 1 ) × ( - 10) =
= 1 × ( - 10 ) =
= - 10
_________________________
[( - 9 ) - ( - 5 ) ] × ( - 6) : [ ( - 10) + 6 ] = - 6
= ( - 9 + 5 ) × ( - 6) : ( - 10 + 6) =
= ( - 4 ) × ( - 6) : ( - 4) =
= 24 : ( - 4) =
= - 6