Platzhalteraufgaben [1]
Minusrechnen
1.
–
70
=
432
2.
–
100
=
617
3.
–
40
=
624
4.
–
20
=
505
5.
–
100
=
445
6.
–
30
=
145
7.
–
30
=
136
8.
–
100
=
2
9.
–
100
=
594
10.
–
50
=
707
11.
–
10
=
756
12.
–
20
=
438
13.
–
100
=
447
14.
–
50
=
738
15.
–
20
=
976
16.
–
40
=
925
17.
–
20
=
104
18.
–
90
=
874
19.
–
70
=
929
20.
–
60
=
84
21.
–
70
=
589
22.
–
70
=
430
23.
–
100
=
281
24.
–
10
=
176
25.
–
30
=
795
26.
–
60
=
701
27.
–
70
=
659
28.
–
60
=
723
29.
–
30
=
602
30.
–
50
=
894
31.
–
80
=
707
32.
–
100
=
96
33.
–
100
=
665
34.
–
70
=
445
35.
–
50
=
263
36.
–
30
=
522