Los de erbijsom tot 100 op

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

Los de erbijsom tot 100 op
| ANTWOORDEN

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