Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
94 + 677 =
771
2
|
2.
371 – 190 =
181
2
|
3.
178 – 76 =
102
2
|
4.
109 + 263 =
372
2
|
|
5.
930 + 69 =
999
2
|
6.
303 + 81 =
2
384
|
7.
124 + 416 =
540
2
|
8.
943 + 53 =
2
996
|
|
9.
220 – 111 =
109
2
|
10.
57 – 32 =
25
2
|
11.
203 + 598 =
801
2
|
12.
12 – 4 =
8
1
|
|
13.
645 – 620 =
25
2
|
14.
844 + 81 =
2
925
|
15.
571 – 330 =
2
241
|
16.
716 – 130 =
2
586
|
|
17.
404 + 125 =
529
2
|
18.
794 + 65 =
2
859
|
19.
973 – 526 =
447
2
|
20.
286 + 140 =
2
426
|