obilcz:
( prosze o rozpisanie )
a) 1 1/4 * ( 1,65- 1/2 : 0.4 )
b) ( 24 * 3 * 5 ) : 6+12 :4)
C) 2 + 18 - 7-5 + 6
D) 3* 2,6 - 6,5 : 13
E ) 2/5 * [ 6-20 : ( 4 + 1 )]
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b) ( 24 * 3 * 5 ) : 6 + 12 : 4 = 4 * 1/2 * 5/6 + 3 = 2 * 5/6 + 3 = 10 2/3 + 3 = 13 2/3
c) 2 + 18 - 7 - 5 + 6 = 20 - 12 + 6 = 20 - 6 = 14
d) 3 * 2,6 - 6,5 : 13 = 7,8 - 0,5 = 7,3
e) 2,5 * [ 6 - 20 : ( 4 + 1 ) ] = 2,5 * ( - 14 : 5 ) = 2,5 * (-2,8) = - 7
Oczekuje na naj !