Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
61 – 0 =
2
61
|
2.
4 + 32 =
36
2
|
3.
60 + 4 =
2
64
|
4.
19 – 1 =
18
2
|
|
5.
37 – 20 =
17
2
|
6.
17 + 76 =
2
93
|
7.
35 – 18 =
2
17
|
8.
96 – 51 =
45
2
|
|
9.
47 – 28 =
19
2
|
10.
60 + 23 =
83
2
|
11.
82 – 43 =
2
39
|
12.
76 – 57 =
19
2
|
|
13.
5 + 20 =
25
2
|
14.
42 + 49 =
91
2
|
15.
2 + 25 =
2
27
|
16.
13 + 13 =
2
26
|
|
17.
52 – 37 =
1
15
|
18.
62 + 14 =
2
76
|
19.
97 + 3 =
100
2
|
20.
20 + 34 =
2
54
|