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