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