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