Platzhalteraufgaben [1]
Minusrechnen
1.
–
90
=
745
2.
–
100
=
873
3.
–
80
=
383
4.
–
20
=
781
5.
–
80
=
289
6.
–
60
=
465
7.
–
10
=
858
8.
–
80
=
55
9.
–
80
=
487
10.
–
20
=
269
11.
–
50
=
905
12.
–
20
=
156
13.
–
80
=
57
14.
–
100
=
558
15.
–
50
=
224
16.
–
40
=
215
17.
–
90
=
839
18.
–
10
=
367
19.
–
50
=
104
20.
–
20
=
176
21.
–
60
=
596
22.
–
40
=
162
23.
–
100
=
838
24.
–
10
=
247
25.
–
60
=
677
26.
–
70
=
35
27.
–
20
=
794
28.
–
30
=
79
29.
–
80
=
77
30.
–
60
=
285
31.
–
80
=
417
32.
–
20
=
145
33.
–
80
=
903
34.
–
50
=
867
35.
–
80
=
528
36.
–
80
=
386