Oefen de erbijsommen tot 100

Erbijsommen
1.
30
+
15
=
45
35
50
40
2.
30
+
50
=
80
75
85
70
3.
70
+
0
=
70
65
60
75
4.
25
+
70
=
95
90
85
75
5.
10
+
90
=
100
90
80
95
6.
10
+
85
=
90
95
85
75
7.
40
+
45
=
95
80
85
90
8.
75
+
20
=
80
95
75
90
9.
0
+
100
=
95
85
90
100
10.
30
+
40
=
80
70
65
75
11.
20
+
45
=
70
60
55
65
12.
15
+
70
=
80
85
90
75
13.
75
+
10
=
90
80
85
75
14.
95
+
0
=
90
80
75
95
15.
40
+
35
=
80
70
85
75
16.
0
+
100
=
90
80
100
95
17.
0
+
5
=
15
20
10
5
18.
70
+
30
=
95
90
100
85
19.
35
+
45
=
80
75
90
85
20.
45
+
55
=
90
80
100
85
21.
45
+
5
=
60
40
45
50
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen

Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
30
+
15
=
45
35
50
40
2.
30
+
50
=
80
75
85
70
3.
70
+
0
=
70
65
60
75
4.
25
+
70
=
95
90
85
75
5.
10
+
90
=
100
90
80
95
6.
10
+
85
=
90
95
85
75
7.
40
+
45
=
95
80
85
90
8.
75
+
20
=
80
95
75
90
9.
0
+
100
=
95
85
90
100
10.
30
+
40
=
80
70
65
75
11.
20
+
45
=
70
60
55
65
12.
15
+
70
=
80
85
90
75
13.
75
+
10
=
90
80
85
75
14.
95
+
0
=
90
80
75
95
15.
40
+
35
=
80
70
85
75
16.
0
+
100
=
90
80
100
95
17.
0
+
5
=
15
20
10
5
18.
70
+
30
=
95
90
100
85
19.
35
+
45
=
80
75
90
85
20.
45
+
55
=
90
80
100
85
21.
45
+
5
=
60
40
45
50
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen