Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
64 – 9 =
2
55
|
2.
66 – 15 =
2
51
|
3.
49 + 30 =
2
79
|
4.
58 – 12 =
46
2
|
|
5.
12 – 2 =
1
10
|
6.
67 – 20 =
47
2
|
7.
43 – 27 =
2
16
|
8.
6 + 9 =
1
15
|
|
9.
73 + 13 =
86
2
|
10.
47 + 33 =
80
2
|
11.
89 – 48 =
41
2
|
12.
82 – 41 =
41
2
|
|
13.
68 + 5 =
2
73
|
14.
47 + 34 =
2
81
|
15.
74 + 16 =
2
90
|
16.
8 – 1 =
7
1
|
|
17.
42 + 31 =
2
73
|
18.
54 – 32 =
2
22
|
19.
10 – 10 =
2
0
|
20.
16 + 34 =
2
50
|