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