Platzhalteraufgaben [1]
Minusrechnen
1.
–
90
=
24
2.
–
30
=
316
3.
–
70
=
381
4.
–
20
=
348
5.
–
70
=
159
6.
–
10
=
857
7.
–
10
=
399
8.
–
60
=
884
9.
–
10
=
387
10.
–
90
=
592
11.
–
100
=
513
12.
–
40
=
551
13.
–
40
=
576
14.
–
50
=
502
15.
–
20
=
968
16.
–
80
=
565
17.
–
90
=
76
18.
–
10
=
872
19.
–
70
=
850
20.
–
50
=
926
21.
–
50
=
104
22.
–
30
=
675
23.
–
50
=
128
24.
–
90
=
271
25.
–
20
=
456
26.
–
20
=
436
27.
–
30
=
813
28.
–
50
=
716
29.
–
60
=
894
30.
–
60
=
677
31.
–
80
=
170
32.
–
20
=
419
33.
–
10
=
978
34.
–
60
=
253
35.
–
70
=
853
36.
–
20
=
553