Reken de erbijsom en erafsom tot 100 uit
In de mix
|
1.
63 – 48 =
15
3
1
2
|
2.
47 + 45 =
92
3
2
4
|
3.
79 – 4 =
3
75
4
2
|
4.
50 – 21 =
29
4
2
3
|
|
5.
31 – 13 =
2
3
4
18
|
6.
30 + 61 =
4
2
3
91
|
7.
74 – 35 =
3
4
39
2
|
8.
15 + 27 =
42
2
3
4
|
|
9.
35 + 4 =
4
39
3
2
|
10.
81 + 9 =
90
3
4
2
|
11.
9 – 0 =
2
9
3
1
|
12.
38 – 23 =
2
3
1
15
|
|
13.
17 – 4 =
1
2
3
13
|
14.
52 – 7 =
2
4
3
45
|
15.
89 – 18 =
4
3
71
2
|
16.
7 – 2 =
2
5
1
3
|
|
17.
74 + 16 =
3
4
2
90
|
18.
68 – 35 =
2
3
4
33
|
19.
75 + 8 =
83
2
4
3
|
20.
40 + 16 =
3
2
56
4
|