Platzhalteraufgaben [1]
Minusrechnen
1.
–
70
=
300
2.
–
50
=
949
3.
–
60
=
912
4.
–
60
=
62
5.
–
70
=
855
6.
–
50
=
441
7.
–
20
=
978
8.
–
90
=
674
9.
–
10
=
733
10.
–
80
=
138
11.
–
100
=
295
12.
–
80
=
170
13.
–
10
=
286
14.
–
70
=
798
15.
–
90
=
756
16.
–
10
=
595
17.
–
50
=
486
18.
–
50
=
809
19.
–
50
=
767
20.
–
30
=
769
21.
–
70
=
794
22.
–
40
=
454
23.
–
60
=
893
24.
–
30
=
874
25.
–
50
=
160
26.
–
60
=
532
27.
–
50
=
304
28.
–
90
=
61
29.
–
100
=
156
30.
–
100
=
239
31.
–
50
=
459
32.
–
10
=
832
33.
–
50
=
645
34.
–
70
=
629
35.
–
100
=
815
36.
–
60
=
334