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