Reken de erbijsom en erafsom tot 100 uit
In de mix
|
1.
81 – 2 =
79
3
2
4
|
2.
1 + 1 =
3
4
2
1
|
3.
4 – 2 =
2
3
1
4
|
4.
85 + 12 =
3
97
2
4
|
|
5.
83 – 9 =
74
2
3
4
|
6.
80 + 18 =
3
4
2
98
|
7.
74 + 20 =
94
2
4
3
|
8.
21 – 20 =
4
1
2
3
|
|
9.
74 – 34 =
4
2
3
40
|
10.
40 – 29 =
1
3
11
2
|
11.
80 + 4 =
4
2
3
84
|
12.
45 – 23 =
22
4
3
2
|
|
13.
38 – 10 =
4
28
3
2
|
14.
44 + 8 =
4
3
52
2
|
15.
64 – 47 =
3
2
4
17
|
16.
77 + 13 =
2
3
4
90
|
|
17.
52 + 41 =
2
4
93
3
|
18.
14 + 61 =
3
2
4
75
|
19.
13 – 1 =
2
3
1
12
|
20.
21 – 17 =
2
4
1
3
|