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