Platzhalteraufgaben [1]
Minusrechnen
1.
–
90
=
259
2.
–
60
=
348
3.
–
70
=
851
4.
–
90
=
582
5.
–
20
=
502
6.
–
10
=
603
7.
–
50
=
156
8.
–
40
=
526
9.
–
70
=
573
10.
–
30
=
398
11.
–
30
=
875
12.
–
20
=
408
13.
–
60
=
907
14.
–
80
=
609
15.
–
50
=
895
16.
–
100
=
443
17.
–
20
=
214
18.
–
90
=
408
19.
–
100
=
435
20.
–
10
=
91
21.
–
60
=
625
22.
–
100
=
240
23.
–
70
=
575
24.
–
80
=
589
25.
–
20
=
263
26.
–
30
=
665
27.
–
70
=
234
28.
–
80
=
246
29.
–
30
=
801
30.
–
30
=
388
31.
–
40
=
670
32.
–
30
=
596
33.
–
90
=
579
34.
–
70
=
222
35.
–
90
=
90
36.
–
90
=
563