Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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