Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
29 – 0 =
2
29
|
2.
63 – 30 =
33
2
|
3.
53 + 30 =
83
2
|
4.
6 + 68 =
2
74
|
|
5.
47 + 4 =
2
51
|
6.
92 – 63 =
29
2
|
7.
27 – 22 =
1
5
|
8.
74 + 7 =
2
81
|
|
9.
38 – 15 =
23
2
|
10.
40 + 25 =
65
2
|
11.
94 + 1 =
2
95
|
12.
76 – 58 =
18
2
|
|
13.
28 + 59 =
87
2
|
14.
53 – 20 =
33
2
|
15.
23 – 12 =
1
11
|
16.
57 – 4 =
2
53
|
|
17.
3 – 1 =
2
1
|
18.
93 – 53 =
2
40
|
19.
20 – 16 =
1
4
|
20.
41 – 23 =
18
2
|