Platzhalteraufgaben [1]
Minusrechnen
1.
–
60
=
887
2.
–
50
=
323
3.
–
80
=
319
4.
–
70
=
353
5.
–
90
=
576
6.
–
70
=
741
7.
–
60
=
868
8.
–
20
=
406
9.
–
70
=
654
10.
–
90
=
381
11.
–
50
=
208
12.
–
60
=
826
13.
–
40
=
155
14.
–
80
=
679
15.
–
40
=
941
16.
–
70
=
542
17.
–
90
=
853
18.
–
100
=
791
19.
–
30
=
269
20.
–
30
=
261
21.
–
50
=
944
22.
–
40
=
876
23.
–
80
=
687
24.
–
100
=
598
25.
–
20
=
791
26.
–
10
=
198
27.
–
100
=
854
28.
–
30
=
572
29.
–
20
=
735
30.
–
10
=
324
31.
–
10
=
771
32.
–
50
=
794
33.
–
90
=
249
34.
–
50
=
129
35.
–
70
=
913
36.
–
70
=
320