Oefen de erbijsommen tot 100

Erbijsommen
1.
90
+
10
=
80
85
100
95
2.
0
+
85
=
90
85
75
95
3.
0
+
95
=
95
85
90
75
4.
10
+
50
=
70
60
55
50
5.
15
+
80
=
95
90
75
85
6.
5
+
40
=
50
45
35
55
7.
40
+
60
=
85
95
80
100
8.
95
+
5
=
95
80
85
100
9.
10
+
0
=
20
15
0
10
10.
40
+
50
=
90
75
70
85
11.
5
+
95
=
100
80
95
90
12.
45
+
15
=
60
50
55
65
13.
40
+
35
=
65
85
75
80
14.
45
+
30
=
85
80
70
75
15.
35
+
50
=
85
95
90
75
16.
5
+
40
=
50
35
55
45
17.
30
+
45
=
75
80
65
70
18.
15
+
80
=
80
75
95
85
19.
60
+
20
=
85
90
80
75
20.
5
+
75
=
85
80
70
90
21.
70
+
20
=
90
70
75
85
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
90
+
10
=
80
85
100
95
2.
0
+
85
=
90
85
75
95
3.
0
+
95
=
95
85
90
75
4.
10
+
50
=
70
60
55
50
5.
15
+
80
=
95
90
75
85
6.
5
+
40
=
50
45
35
55
7.
40
+
60
=
85
95
80
100
8.
95
+
5
=
95
80
85
100
9.
10
+
0
=
20
15
0
10
10.
40
+
50
=
90
75
70
85
11.
5
+
95
=
100
80
95
90
12.
45
+
15
=
60
50
55
65
13.
40
+
35
=
65
85
75
80
14.
45
+
30
=
85
80
70
75
15.
35
+
50
=
85
95
90
75
16.
5
+
40
=
50
35
55
45
17.
30
+
45
=
75
80
65
70
18.
15
+
80
=
80
75
95
85
19.
60
+
20
=
85
90
80
75
20.
5
+
75
=
85
80
70
90
21.
70
+
20
=
90
70
75
85
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen