Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
583 + 340 =
2
923
|
2.
34 + 158 =
2
192
|
3.
58 + 778 =
2
836
|
4.
569 + 115 =
684
2
|
|
5.
671 – 160 =
2
511
|
6.
898 – 58 =
2
840
|
7.
986 – 246 =
740
2
|
8.
865 + 90 =
2
955
|
|
9.
719 + 280 =
2
999
|
10.
989 + 10 =
999
2
|
11.
975 + 7 =
2
982
|
12.
530 – 478 =
52
2
|
|
13.
82 – 20 =
62
2
|
14.
526 + 111 =
2
637
|
15.
567 – 335 =
232
2
|
16.
7 + 27 =
34
2
|
|
17.
916 – 813 =
103
2
|
18.
925 + 22 =
2
947
|
19.
489 + 221 =
2
710
|
20.
724 – 466 =
2
258
|