Platzhalteraufgaben [1]
Minusrechnen
1.
–
90
=
208
2.
–
10
=
244
3.
–
90
=
226
4.
–
20
=
388
5.
–
50
=
918
6.
–
100
=
424
7.
–
50
=
773
8.
–
90
=
696
9.
–
40
=
455
10.
–
20
=
752
11.
–
80
=
435
12.
–
30
=
627
13.
–
90
=
800
14.
–
30
=
565
15.
–
10
=
302
16.
–
100
=
769
17.
–
10
=
521
18.
–
60
=
721
19.
–
50
=
172
20.
–
30
=
713
21.
–
50
=
919
22.
–
60
=
448
23.
–
20
=
84
24.
–
100
=
897
25.
–
40
=
341
26.
–
40
=
423
27.
–
50
=
238
28.
–
50
=
605
29.
–
20
=
132
30.
–
50
=
883
31.
–
20
=
104
32.
–
50
=
591
33.
–
10
=
196
34.
–
100
=
325
35.
–
60
=
670
36.
–
40
=
889