Kopfrechnen

Kopfrechnen

  
Rechne rasch und richtig! Mein Tipp: Nimm nur die Tabulator-Taste und den Ziffernblock!
+ 5 = 8
+ 6 = 7
+ 4 = 8
+ 1 = 7
+ 0 = 7
- 5 = 3
- 9 = 0
- 4 = 6
+ 9 = 19
+ 8 = 18
+ 3 = 13
+ 1 = 12
+ 5 = 17
+ 0 = 12
+ 7 = 20
+ 6 = 20
14 + 5 =
16 + = 19
- 0 = 16
- 1 = 16
- 0 = 18
- 6 = 13
20 + 2 =
+ 5 = 25
20 - 7 =
+ 2 = 23
21 + 0 =
+ 8 = 30
22 + 2 =
- 5 = 24
- 5 = 25
30 + 60 =
+ 40 = 80
50 - = 50
- 0 = 70
80 - 20 =
+ 0 = 90
100 - = 40
+ 5 = 25
+ 9 = 13
+ 4 = 11
8 + = 11
- 10 = 1
12 - = 2
+ 9 = 22
15 + = 21
- 7 = 9
+ 7 = 24
+ 8 = 27
- 4 = 17
- 5 = 18
- 10 = 15
- 10 = 19