Oefen de erbijsommen tot 100

Erbijsommen
1.
10
+
85
=
2.
20
+
30
=
3.
35
+
55
=
4.
5
+
80
=
5.
0
+
95
=
6.
25
+
55
=
7.
10
+
90
=
8.
10
+
15
=
9.
45
+
55
=
10.
0
+
95
=
11.
45
+
50
=
12.
15
+
55
=
13.
0
+
100
=
14.
0
+
65
=
15.
10
+
25
=
16.
10
+
65
=
17.
25
+
60
=
18.
5
+
80
=
19.
5
+
95
=
20.
0
+
95
=
21.
15
+
80
=
22.
25
+
55
=
23.
15
+
30
=
24.
35
+
60
=
25.
5
+
15
=
26.
5
+
95
=
27.
25
+
65
=
28.
20
+
50
=
29.
0
+
65
=
30.
0
+
100
=
31.
10
+
55
=
32.
5
+
95
=
33.
15
+
75
=
34.
15
+
65
=
35.
0
+
100
=
36.
15
+
60
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
10
+
85
=
95
2.
20
+
30
=
50
3.
35
+
55
=
90
4.
5
+
80
=
85
5.
0
+
95
=
95
6.
25
+
55
=
80
7.
10
+
90
=
100
8.
10
+
15
=
25
9.
45
+
55
=
100
10.
0
+
95
=
95
11.
45
+
50
=
95
12.
15
+
55
=
70
13.
0
+
100
=
100
14.
0
+
65
=
65
15.
10
+
25
=
35
16.
10
+
65
=
75
17.
25
+
60
=
85
18.
5
+
80
=
85
19.
5
+
95
=
100
20.
0
+
95
=
95
21.
15
+
80
=
95
22.
25
+
55
=
80
23.
15
+
30
=
45
24.
35
+
60
=
95
25.
5
+
15
=
20
26.
5
+
95
=
100
27.
25
+
65
=
90
28.
20
+
50
=
70
29.
0
+
65
=
65
30.
0
+
100
=
100
31.
10
+
55
=
65
32.
5
+
95
=
100
33.
15
+
75
=
90
34.
15
+
65
=
80
35.
0
+
100
=
100
36.
15
+
60
=
75
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen