Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
2 – 1 =
2
1
|
2.
36 + 62 =
2
98
|
3.
29 + 27 =
56
2
|
4.
44 – 35 =
9
1
|
|
5.
62 + 25 =
2
87
|
6.
42 + 4 =
46
2
|
7.
53 + 35 =
88
2
|
8.
4 + 84 =
2
88
|
|
9.
84 + 4 =
88
2
|
10.
90 – 88 =
2
1
|
11.
25 – 7 =
2
18
|
12.
9 – 0 =
9
1
|
|
13.
54 + 14 =
68
2
|
14.
10 – 6 =
1
4
|
15.
53 – 44 =
1
9
|
16.
64 – 46 =
2
18
|
|
17.
41 + 20 =
2
61
|
18.
86 + 6 =
2
92
|
19.
41 + 32 =
2
73
|
20.
43 – 32 =
11
1
|