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Rechenmarathon
Stoppe deine Zeit! Wie schnell kannst du diese Seite lösen?
300
+
400
=
60
+
50
=
3
+
8
=
20
+
90
=
90
+
50
=
2
+
9
=
7
+
6
=
600
+
400
=
50
+
60
=
8
+
4
=
900
+
400
=
70
+
50
=
400
+
800
=
6
+
6
=
6
+
7
=
90
+
80
=
9
+
6
=
800
+
300
=
500
+
600
=
5
+
6
=
700
+
400
=
600
+
300
=
40
+
70
=
300
+
800
=
70
+
20
=
80
+
70
=
40
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50
=
9
+
8
=
800
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700
=
6
+
7
=
Ich habe es in ____ Minuten geschafft!