Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
409 + 467 =
2
876
|
2.
351 + 201 =
2
552
|
3.
626 – 386 =
240
2
|
4.
69 – 27 =
2
42
|
|
5.
684 + 214 =
898
2
|
6.
590 + 18 =
608
2
|
7.
653 + 66 =
719
2
|
8.
350 – 83 =
2
267
|
|
9.
867 – 336 =
531
2
|
10.
307 + 450 =
2
757
|
11.
566 + 154 =
720
2
|
12.
506 + 133 =
639
2
|
|
13.
689 – 272 =
2
417
|
14.
739 + 241 =
980
2
|
15.
670 + 214 =
884
2
|
16.
67 – 52 =
15
1
|
|
17.
910 + 45 =
955
2
|
18.
321 + 288 =
2
609
|
19.
360 + 588 =
948
2
|
20.
215 – 101 =
114
2
|