October 2018 2 21 Report

A) Oblicz:

1) -3 ¼+7 ½=

2) 5 1/14 – 12 5/7=

3) 12 ¾-5 5/6=

4) -4 ¾ - 6 1/8=

5) –2 4/13 + (-4 27/39 )=

6) 1 7/15- (-25 2/5)=

B) Doprowadz do najprostrzej postaci wyrazenia.

1) A do potegi 11* A do potegi 12/ A do potegi 20=

2) x do 3 * x do 4/ x do 5 * x=

3) (x do 2)do –3potegi*x do 4=

4) A do 3 * A do 5 : a do 11=

C)Oblicz korzystajac z właściwości poteg :

1) 2 do5* 5 do 5/ 10 do 3=

2) [(1 1/3) do –2 potegi]do 2 * (4/3) do 6=

3)28 do 4:7 do 4/ (4*4do 2) do 2=

4)(5*5 do 3) : (5 do 8* 5do 5)=

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