Reken de erbijsom en erafsom tot 20 uit
In de mix
|
1.
5 – 0 =
5
1
3
2
|
2.
1 – 0 =
3
2
4
1
|
3.
2 – 1 =
1
3
2
4
|
4.
19 + 0 =
3
4
2
19
|
|
5.
16 – 12 =
4
2
3
1
|
6.
18 + 2 =
20
4
3
2
|
7.
8 – 0 =
2
3
1
8
|
8.
6 – 1 =
1
3
5
2
|
|
9.
5 – 3 =
4
2
1
3
|
10.
9 + 7 =
2
4
16
3
|
11.
11 + 2 =
1
2
3
13
|
12.
12 + 1 =
3
1
13
2
|
|
13.
11 + 0 =
2
11
3
1
|
14.
1 – 0 =
1
3
4
2
|
15.
10 – 8 =
3
1
4
2
|
16.
5 – 3 =
4
1
2
3
|
|
17.
19 – 10 =
1
3
9
2
|
18.
2 – 2 =
0
2
4
3
|
19.
11 + 6 =
4
17
3
2
|
20.
16 + 2 =
18
2
4
3
|