Supersnelle erbijsommen en erafsommen tot 50
In de mix
|
1.
22 + 28 =
3
2
50
4
|
2.
12 + 18 =
2
3
30
4
|
3.
13 – 12 =
4
2
1
3
|
4.
10 – 7 =
2
1
4
3
|
|
5.
44 – 43 =
2
3
1
4
|
6.
21 – 1 =
3
20
4
2
|
7.
49 – 34 =
15
1
2
3
|
8.
27 – 24 =
4
2
1
3
|
|
9.
15 – 1 =
2
14
3
1
|
10.
3 + 11 =
2
1
3
14
|
11.
16 + 15 =
31
2
4
3
|
12.
27 + 22 =
3
2
49
4
|
|
13.
9 – 5 =
2
1
4
3
|
14.
19 – 18 =
4
2
3
1
|
15.
30 + 13 =
4
43
3
2
|
16.
4 + 36 =
40
4
3
2
|
|
17.
17 – 17 =
3
2
4
0
|
18.
6 + 26 =
3
4
2
32
|
19.
35 – 12 =
2
23
3
4
|
20.
2 – 1 =
3
2
1
4
|