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