Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
123 + 414 =
2
537
|
2.
342 – 258 =
84
2
|
3.
999 + 0 =
2
999
|
4.
979 + 6 =
2
985
|
|
5.
388 – 51 =
337
2
|
6.
839 – 95 =
744
2
|
7.
284 + 45 =
2
329
|
8.
558 – 168 =
390
2
|
|
9.
151 + 64 =
215
2
|
10.
775 + 30 =
805
2
|
11.
517 – 57 =
2
460
|
12.
362 – 108 =
2
254
|
|
13.
852 – 405 =
2
447
|
14.
481 + 262 =
743
2
|
15.
76 + 800 =
876
2
|
16.
135 + 256 =
2
391
|
|
17.
746 + 162 =
2
908
|
18.
506 + 17 =
2
523
|
19.
401 – 45 =
2
356
|
20.
15 + 392 =
2
407
|