Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
201 – 49 =
152
2
|
2.
358 + 301 =
2
659
|
3.
622 – 403 =
219
2
|
4.
892 – 185 =
707
2
|
|
5.
452 – 407 =
45
2
|
6.
623 – 309 =
314
2
|
7.
325 – 265 =
2
60
|
8.
502 – 390 =
2
112
|
|
9.
779 + 186 =
2
965
|
10.
251 + 19 =
2
270
|
11.
853 – 210 =
643
2
|
12.
20 + 224 =
244
2
|
|
13.
988 + 10 =
998
2
|
14.
23 + 885 =
908
2
|
15.
700 – 290 =
410
2
|
16.
689 – 359 =
2
330
|
|
17.
390 – 328 =
62
2
|
18.
213 + 769 =
2
982
|
19.
2 + 115 =
117
2
|
20.
106 + 595 =
2
701
|