Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
618 + 80 =
2
698
|
2.
143 + 101 =
244
2
|
3.
860 + 8 =
868
2
|
4.
215 + 189 =
404
2
|
|
5.
462 – 84 =
378
2
|
6.
843 – 287 =
556
2
|
7.
979 + 16 =
2
995
|
8.
256 – 174 =
2
82
|
|
9.
989 + 3 =
2
992
|
10.
172 – 17 =
2
155
|
11.
782 + 183 =
965
2
|
12.
986 + 8 =
994
2
|
|
13.
709 + 199 =
2
908
|
14.
177 – 128 =
2
49
|
15.
257 + 381 =
2
638
|
16.
257 + 53 =
310
2
|
|
17.
941 – 920 =
21
2
|
18.
721 – 349 =
2
372
|
19.
227 – 98 =
129
2
|
20.
873 + 121 =
2
994
|