Oefen de erbijsom en erafsom tot 100
In de mix
|
1.
20 – 11 =
1
9
|
2.
51 – 17 =
2
34
|
3.
29 + 55 =
84
2
|
4.
47 – 16 =
31
2
|
|
5.
28 + 56 =
2
84
|
6.
24 – 17 =
1
7
|
7.
65 – 16 =
2
49
|
8.
94 + 6 =
100
2
|
|
9.
88 – 1 =
87
2
|
10.
43 – 23 =
20
2
|
11.
76 – 8 =
68
2
|
12.
78 – 53 =
2
25
|
|
13.
70 + 3 =
2
73
|
14.
78 + 19 =
97
2
|
15.
9 – 5 =
1
4
|
16.
43 + 54 =
97
2
|
|
17.
36 + 13 =
2
49
|
18.
58 + 17 =
75
2
|
19.
97 – 21 =
2
76
|
20.
19 + 14 =
2
33
|