Platzhalteraufgaben [1]
Minusrechnen
1.
–
80
=
408
2.
–
50
=
225
3.
–
50
=
505
4.
–
80
=
22
5.
–
20
=
337
6.
–
90
=
869
7.
–
50
=
544
8.
–
50
=
96
9.
–
40
=
702
10.
–
20
=
629
11.
–
20
=
504
12.
–
90
=
212
13.
–
30
=
436
14.
–
100
=
354
15.
–
80
=
132
16.
–
30
=
259
17.
–
50
=
306
18.
–
60
=
156
19.
–
20
=
497
20.
–
20
=
818
21.
–
90
=
728
22.
–
80
=
744
23.
–
60
=
577
24.
–
90
=
440
25.
–
100
=
7
26.
–
20
=
529
27.
–
90
=
135
28.
–
30
=
116
29.
–
90
=
827
30.
–
50
=
259
31.
–
50
=
372
32.
–
20
=
446
33.
–
50
=
590
34.
–
40
=
309
35.
–
60
=
211
36.
–
20
=
679