Oefen de erafsommen tot 100

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

Oefen de erafsommen tot 100
| ANTWOORDEN

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