Division/Ed/Reproduzieren/Aufgabe/Lösung
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Division/Ed/Reproduzieren/Aufgabe
Ed rechnet
63
=
6
⋅
10
+
3
=
6
⋅
(
7
+
3
)
+
3
=
6
⋅
7
+
6
⋅
3
+
3
=
6
⋅
7
+
21
=
6
⋅
7
+
2
⋅
10
+
1
=
6
⋅
7
+
2
⋅
(
7
+
3
)
+
1
=
6
⋅
7
+
2
⋅
7
+
2
⋅
3
+
1
=
8
⋅
7
+
7
=
9
⋅
7
,
{\displaystyle {}{\begin{aligned}63&=6\cdot 10+3\\&=6\cdot (7+3)+3\\&=6\cdot 7+6\cdot 3+3\\&=6\cdot 7+21\\&=6\cdot 7+2\cdot 10+1\\&=6\cdot 7+2\cdot (7+3)+1\\&=6\cdot 7+2\cdot 7+2\cdot 3+1\\&=8\cdot 7+7\\&=9\cdot 7,\end{aligned}}}
die Antwort ist also
9
{\displaystyle {}9}
.
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