Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
214 – 39 =
2
175
|
2.
714 + 254 =
2
968
|
3.
18 + 239 =
2
257
|
4.
366 + 518 =
884
2
|
|
5.
417 + 204 =
621
2
|
6.
652 + 108 =
2
760
|
7.
174 – 128 =
2
46
|
8.
990 – 866 =
2
124
|
|
9.
325 – 134 =
2
191
|
10.
476 – 2 =
474
2
|
11.
518 + 408 =
2
926
|
12.
649 + 327 =
976
2
|
|
13.
794 – 42 =
752
2
|
14.
715 – 68 =
647
2
|
15.
563 – 336 =
2
227
|
16.
235 – 68 =
2
167
|
|
17.
760 – 499 =
261
2
|
18.
382 – 218 =
2
164
|
19.
546 – 81 =
2
465
|
20.
556 + 375 =
2
931
|