Platzhalteraufgaben [1]
Minusrechnen
1.
–
30
=
621
2.
–
30
=
235
3.
–
60
=
155
4.
–
70
=
567
5.
–
50
=
367
6.
–
50
=
111
7.
–
10
=
915
8.
–
20
=
782
9.
–
50
=
276
10.
–
50
=
52
11.
–
20
=
836
12.
–
20
=
224
13.
–
30
=
93
14.
–
20
=
336
15.
–
20
=
185
16.
–
80
=
35
17.
–
80
=
400
18.
–
40
=
780
19.
–
100
=
237
20.
–
30
=
191
21.
–
70
=
703
22.
–
90
=
525
23.
–
60
=
271
24.
–
100
=
70
25.
–
10
=
124
26.
–
10
=
260
27.
–
30
=
369
28.
–
30
=
214
29.
–
40
=
589
30.
–
10
=
174
31.
–
30
=
304
32.
–
40
=
665
33.
–
100
=
311
34.
–
40
=
628
35.
–
30
=
129
36.
–
50
=
305