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${\displaystyle {\color {white}\mathbf {MATHE} \mu \alpha T\mathbb {R} ix}}$ DEINE FESTE BEGLEITERIN FÜR DIE SCHULMATHEMATIK EINFACH VERSTÄNDLICH AUFBAUEND GRATIS!* UND SYMPATHISCH JETZT STARTEN! MIT MEHR ALS 200 THEORIE- UND AUFGABEN-ERKLÄRUNGSVIDEOS! Mathe lernen ist wie Fahrradfahren lernen: Du kannst es dir stundenlang erklären lassen, du wirst nie fahren können, wenn du nicht selber zu fahren probierst.

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Aufgaben

1. 
   

   Zur welchen Zahlenmengen gehören folgende Zahlen? ${\displaystyle \quad }$ ${\displaystyle \mathbb {N} }$ ${\displaystyle \mathbb {Z} }$ ${\displaystyle \mathbb {Q} }$ ${\displaystyle \mathbb {I} }$ ${\displaystyle \mathbb {R} }$ ${\displaystyle \textstyle {\frac {5}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {26}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle -{\frac {\sqrt {5}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {7}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle -{\sqrt {196}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {-4}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {169}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle -{\frac {26}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$

2. 
   

   Zur welchen Zahlenmengen gehören folgende Zahlen? ${\displaystyle \quad }$ ${\displaystyle \mathbb {N} }$ ${\displaystyle \mathbb {Z} }$ ${\displaystyle \mathbb {Q} }$ ${\displaystyle \mathbb {I} }$ ${\displaystyle \mathbb {R} }$ ${\displaystyle \textstyle +{\frac {\sqrt {0{,}25}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {33}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle -{\sqrt {441}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {-9}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle 6}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {\sqrt {11}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {65}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle -{\frac {8}{4}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$

3. 
   

   Zur welchen Zahlenmengen gehören folgende Zahlen? ${\displaystyle \quad }$ ${\displaystyle \mathbb {N} }$ ${\displaystyle \mathbb {Z} }$ ${\displaystyle \mathbb {Q} }$ ${\displaystyle \mathbb {I} }$ ${\displaystyle \mathbb {R} }$ ${\displaystyle {\sqrt {144}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle +{\frac {39}{3}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {13}{6{,}5}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle -{\frac {\sqrt {81}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {\sqrt {8}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {289}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle -{\sqrt {-6}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {4}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$

4. 
   

   Zur welchen Zahlenmengen gehören folgende Zahlen? ${\displaystyle \quad }$ ${\displaystyle \mathbb {N} }$ ${\displaystyle \mathbb {Z} }$ ${\displaystyle \mathbb {Q} }$ ${\displaystyle \mathbb {I} }$ ${\displaystyle \mathbb {R} }$ ${\displaystyle \textstyle {\frac {0{,}5}{\sqrt {0{,}0625}}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle -{\frac {38}{3}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle -{\frac {52}{1{,}3}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {\sqrt {169}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \textstyle {\frac {\sqrt {-9}}{13}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {28}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle -{\sqrt {(-25)(-4)}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle {\sqrt {18}}}$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$ ${\displaystyle \quad }$