Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
40 – 26 =
14
1
|
2.
37 + 1 =
38
2
|
3.
1 – 0 =
1
2
|
4.
22 + 29 =
2
51
|
|
5.
95 – 66 =
2
29
|
6.
55 – 44 =
11
1
|
7.
72 – 25 =
2
47
|
8.
40 – 33 =
1
7
|
|
9.
28 – 20 =
8
1
|
10.
29 + 2 =
2
31
|
11.
49 + 3 =
2
52
|
12.
37 + 29 =
2
66
|
|
13.
70 + 11 =
2
81
|
14.
49 – 43 =
1
6
|
15.
54 + 40 =
94
2
|
16.
41 + 1 =
2
42
|
|
17.
90 – 71 =
2
19
|
18.
86 – 27 =
2
59
|
19.
52 – 4 =
2
48
|
20.
32 + 34 =
66
2
|