Platzhalteraufgaben [1]
Minusrechnen
1.
–
30
=
638
2.
–
90
=
84
3.
–
100
=
874
4.
–
20
=
198
5.
–
100
=
394
6.
–
10
=
305
7.
–
20
=
668
8.
–
100
=
61
9.
–
10
=
755
10.
–
30
=
878
11.
–
90
=
445
12.
–
60
=
674
13.
–
50
=
348
14.
–
90
=
323
15.
–
30
=
662
16.
–
20
=
291
17.
–
90
=
582
18.
–
60
=
424
19.
–
80
=
513
20.
–
30
=
327
21.
–
50
=
539
22.
–
90
=
375
23.
–
90
=
816
24.
–
40
=
651
25.
–
50
=
771
26.
–
90
=
615
27.
–
60
=
699
28.
–
90
=
266
29.
–
60
=
543
30.
–
50
=
467
31.
–
10
=
466
32.
–
50
=
905
33.
–
50
=
447
34.
–
50
=
592
35.
–
80
=
475
36.
–
10
=
861