Oefen tientallen, losse getallen en handig aanvullen tot 100.
20 + ... = 100
80
70 + ... = 100
30
35 + ... = 100
65
48 + ... = 50
2
48 + ... = 100
52
60 + 7 = ...
67
80 + 9 = ...
89
40 + ... = 47
7
93 = 90 + ...
3
76 = 70 + ...
6
50 + 30 = ...
80 - 30 = ...
50
100 - 40 = ...
60
90 - ... = 60
3 tientallen + 4 lossen = ...
34
8 tientallen + 2 lossen = ...
82
46 + ... = 50
4
46 + ... = 100
54
99 + 1 = ...
100
100 - 1 = ...
99