Oefen de erbijsommen tot 100

Erbijsommen
1.
75
+
5
=
70
80
85
90
2.
90
+
0
=
85
90
80
75
3.
60
+
5
=
65
70
55
60
4.
70
+
25
=
90
75
80
95
5.
15
+
10
=
35
20
25
15
6.
70
+
15
=
80
85
95
90
7.
90
+
0
=
85
70
90
75
8.
60
+
40
=
95
80
100
90
9.
90
+
10
=
85
100
80
95
10.
80
+
20
=
95
100
90
85
11.
50
+
15
=
75
55
70
65
12.
0
+
70
=
75
60
70
65
13.
5
+
70
=
70
65
85
75
14.
70
+
10
=
75
80
70
90
15.
80
+
5
=
95
90
85
80
16.
5
+
85
=
85
75
90
80
17.
25
+
75
=
95
100
85
80
18.
40
+
50
=
90
75
85
80
19.
25
+
65
=
70
85
80
90
20.
35
+
45
=
85
75
70
80
21.
50
+
45
=
80
85
75
95
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
75
+
5
=
70
80
85
90
2.
90
+
0
=
85
90
80
75
3.
60
+
5
=
65
70
55
60
4.
70
+
25
=
90
75
80
95
5.
15
+
10
=
35
20
25
15
6.
70
+
15
=
80
85
95
90
7.
90
+
0
=
85
70
90
75
8.
60
+
40
=
95
80
100
90
9.
90
+
10
=
85
100
80
95
10.
80
+
20
=
95
100
90
85
11.
50
+
15
=
75
55
70
65
12.
0
+
70
=
75
60
70
65
13.
5
+
70
=
70
65
85
75
14.
70
+
10
=
75
80
70
90
15.
80
+
5
=
95
90
85
80
16.
5
+
85
=
85
75
90
80
17.
25
+
75
=
95
100
85
80
18.
40
+
50
=
90
75
85
80
19.
25
+
65
=
70
85
80
90
20.
35
+
45
=
85
75
70
80
21.
50
+
45
=
80
85
75
95
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen