Snelle erbijsommen en erafsommen tot 20
In de mix
1.
13
12
jimmy
–
=
2.
12
0
jimmy
+
=
3.
12
1
jimmy
+
=
4.
19
12
jimmy
–
=
5.
15
14
jimmy
–
=
6.
13
5
jimmy
+
=
7.
14
6
jimmy
+
=
8.
13
6
jimmy
+
=
9.
13
3
jimmy
+
=
10.
20
14
jimmy
–
=
11.
18
17
jimmy
–
=
12.
20
19
jimmy
–
=
13.
16
13
jimmy
–
=
14.
16
14
jimmy
–
=
15.
13
7
jimmy
+
=
16.
15
12
jimmy
–
=
17.
14
12
jimmy
–
=
18.
15
13
jimmy
–
=
19.
17
16
jimmy
–
=
20.
12
1
jimmy
+
=
21.
13
6
jimmy
+
=
22.
14
1
jimmy
+
=
23.
16
12
jimmy
–
=
24.
16
14
jimmy
–
=
Snelle erbijsommen en erafsommen tot 20
| ANTWOORDEN
In de mix
1.
13
12
1
–
=
2.
12
0
12
+
=
3.
12
1
13
+
=
4.
19
12
7
–
=
5.
15
14
1
–
=
6.
13
5
18
+
=
7.
14
6
20
+
=
8.
13
6
19
+
=
9.
13
3
16
+
=
10.
20
14
6
–
=
11.
18
17
1
–
=
12.
20
19
1
–
=
13.
16
13
3
–
=
14.
16
14
2
–
=
15.
13
7
20
+
=
16.
15
12
3
–
=
17.
14
12
2
–
=
18.
15
13
2
–
=
19.
17
16
1
–
=
20.
12
1
13
+
=
21.
13
6
19
+
=
22.
14
1
15
+
=
23.
16
12
4
–
=
24.
16
14
2
–
=