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