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zadanie 5 str 85 zbior zadan, matematyka wokol nas klasa 1 gim

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a) (-2,5) : 1 2/3 -1,4=

b) 1 2/5 * (-1 3/7) +1/3 *[1+6:(-18)]=

c) 2,6 - 1/4 : [2-(-1,75)]=

d) [-2/3-(-1,8):(-1 1/5)] : (-1/25)=


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