Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
668 + 316 =
2
984
|
2.
941 – 205 =
736
2
|
3.
969 – 228 =
2
741
|
4.
469 + 429 =
898
2
|
|
5.
913 – 490 =
423
2
|
6.
481 + 88 =
2
569
|
7.
537 + 310 =
2
847
|
8.
528 – 152 =
376
2
|
|
9.
441 – 279 =
162
2
|
10.
293 + 491 =
784
2
|
11.
987 – 903 =
84
2
|
12.
228 – 28 =
200
2
|
|
13.
369 – 112 =
257
2
|
14.
807 + 37 =
2
844
|
15.
399 – 0 =
2
399
|
16.
877 – 413 =
464
2
|
|
17.
568 + 278 =
846
2
|
18.
925 + 52 =
2
977
|
19.
799 – 701 =
2
98
|
20.
726 + 138 =
2
864
|