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Lets spouse that you have this 12,5-19,54. How can you solve that? 

 25.10.2017
 #1
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12.5-19.54 = -(19.54-12.5) = 7.04

 25.10.2017
 #2
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12.5-19.54 = -(19.54-12.5) = - 7.04  !!

laugh

 29.10.2017
 #3
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0

12,5 - 19,54 = ?  How can you solve that? 

 

12,5 - 19,54 = - (19,54 - 12,5)

 

     \(19,54 \)

 \(-\ \underline{12,5\ }\)

  \(\color{blue}=\ 7,04\)

 

12,5 - 19,54 = - 7,04

 

laugh  !

 31.10.2017

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