Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
8 + 32 =
2
40
|
2.
68 – 68 =
2
0
|
3.
5 + 13 =
18
2
|
4.
71 + 7 =
2
78
|
|
5.
49 + 42 =
2
91
|
6.
5 – 1 =
4
1
|
7.
98 – 37 =
61
2
|
8.
57 + 27 =
2
84
|
|
9.
84 + 1 =
2
85
|
10.
23 + 10 =
2
33
|
11.
41 – 32 =
1
9
|
12.
90 + 3 =
2
93
|
|
13.
69 + 9 =
78
2
|
14.
37 + 26 =
2
63
|
15.
29 + 5 =
2
34
|
16.
96 + 2 =
2
98
|
|
17.
87 + 2 =
2
89
|
18.
50 – 50 =
2
0
|
19.
10 + 1 =
1
11
|
20.
65 + 9 =
2
74
|