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