Platzhalteraufgaben [1]
Minusrechnen
1.
–
20
=
957
2.
–
100
=
770
3.
–
80
=
502
4.
–
20
=
245
5.
–
30
=
842
6.
–
60
=
365
7.
–
50
=
207
8.
–
10
=
725
9.
–
80
=
772
10.
–
10
=
741
11.
–
80
=
874
12.
–
10
=
718
13.
–
50
=
148
14.
–
70
=
486
15.
–
80
=
830
16.
–
40
=
85
17.
–
30
=
490
18.
–
50
=
749
19.
–
30
=
884
20.
–
80
=
70
21.
–
80
=
122
22.
–
100
=
491
23.
–
30
=
862
24.
–
30
=
660
25.
–
90
=
341
26.
–
10
=
549
27.
–
90
=
697
28.
–
90
=
772
29.
–
50
=
294
30.
–
50
=
465
31.
–
60
=
55
32.
–
60
=
147
33.
–
70
=
706
34.
–
20
=
389
35.
–
30
=
354
36.
–
20
=
669