Platzhalteraufgaben [1]
Minusrechnen
1.
–
70
=
579
2.
–
60
=
826
3.
–
30
=
640
4.
–
100
=
556
5.
–
10
=
364
6.
–
50
=
544
7.
–
20
=
965
8.
–
40
=
905
9.
–
30
=
905
10.
–
80
=
441
11.
–
10
=
760
12.
–
10
=
716
13.
–
10
=
930
14.
–
50
=
64
15.
–
20
=
955
16.
–
100
=
865
17.
–
60
=
823
18.
–
10
=
975
19.
–
10
=
958
20.
–
30
=
798
21.
–
80
=
405
22.
–
60
=
447
23.
–
10
=
836
24.
–
70
=
696
25.
–
10
=
782
26.
–
80
=
781
27.
–
100
=
628
28.
–
50
=
793
29.
–
20
=
977
30.
–
50
=
100
31.
–
90
=
81
32.
–
80
=
699
33.
–
20
=
568
34.
–
90
=
707
35.
–
100
=
243
36.
–
80
=
219