Oefen de erbijsommen tot 100

Erbijsommen
1.
10
+
90
=
2.
10
+
50
=
3.
5
+
80
=
4.
35
+
55
=
5.
10
+
85
=
6.
20
+
65
=
7.
40
+
40
=
8.
25
+
75
=
9.
15
+
85
=
10.
15
+
20
=
11.
20
+
60
=
12.
10
+
50
=
13.
5
+
90
=
14.
5
+
65
=
15.
0
+
50
=
16.
20
+
50
=
17.
10
+
40
=
18.
20
+
75
=
19.
25
+
25
=
20.
20
+
20
=
21.
5
+
75
=
22.
40
+
40
=
23.
25
+
75
=
24.
20
+
50
=
25.
15
+
85
=
26.
40
+
45
=
27.
15
+
55
=
28.
5
+
30
=
29.
20
+
80
=
30.
0
+
75
=
31.
15
+
65
=
32.
0
+
90
=
33.
5
+
65
=
34.
0
+
100
=
35.
0
+
60
=
36.
5
+
85
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
10
+
90
=
100
2.
10
+
50
=
60
3.
5
+
80
=
85
4.
35
+
55
=
90
5.
10
+
85
=
95
6.
20
+
65
=
85
7.
40
+
40
=
80
8.
25
+
75
=
100
9.
15
+
85
=
100
10.
15
+
20
=
35
11.
20
+
60
=
80
12.
10
+
50
=
60
13.
5
+
90
=
95
14.
5
+
65
=
70
15.
0
+
50
=
50
16.
20
+
50
=
70
17.
10
+
40
=
50
18.
20
+
75
=
95
19.
25
+
25
=
50
20.
20
+
20
=
40
21.
5
+
75
=
80
22.
40
+
40
=
80
23.
25
+
75
=
100
24.
20
+
50
=
70
25.
15
+
85
=
100
26.
40
+
45
=
85
27.
15
+
55
=
70
28.
5
+
30
=
35
29.
20
+
80
=
100
30.
0
+
75
=
75
31.
15
+
65
=
80
32.
0
+
90
=
90
33.
5
+
65
=
70
34.
0
+
100
=
100
35.
0
+
60
=
60
36.
5
+
85
=
90
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen