Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
51 – 23 =
2
28
|
2.
23 + 25 =
2
48
|
3.
36 – 15 =
2
21
|
4.
16 + 45 =
2
61
|
|
5.
61 + 13 =
2
74
|
6.
99 – 45 =
54
2
|
7.
57 + 3 =
2
60
|
8.
97 – 41 =
56
2
|
|
9.
58 + 31 =
89
2
|
10.
31 + 2 =
2
33
|
11.
47 – 4 =
43
2
|
12.
65 – 25 =
2
40
|
|
13.
41 – 28 =
13
1
|
14.
46 – 24 =
22
2
|
15.
92 – 9 =
2
83
|
16.
25 – 13 =
1
12
|
|
17.
19 – 19 =
2
0
|
18.
30 + 38 =
2
68
|
19.
46 + 51 =
97
2
|
20.
86 – 0 =
86
2
|