Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
213 + 579 =
2
792
|
2.
388 + 16 =
2
404
|
3.
988 + 7 =
995
2
|
4.
63 + 794 =
857
2
|
|
5.
349 – 337 =
12
1
|
6.
151 – 38 =
2
113
|
7.
284 + 340 =
624
2
|
8.
389 – 378 =
1
11
|
|
9.
837 – 434 =
2
403
|
10.
245 + 309 =
2
554
|
11.
811 + 118 =
2
929
|
12.
716 + 111 =
827
2
|
|
13.
848 – 695 =
153
2
|
14.
593 – 294 =
299
2
|
15.
13 + 424 =
437
2
|
16.
848 – 183 =
665
2
|
|
17.
546 + 222 =
2
768
|
18.
612 – 248 =
364
2
|
19.
893 + 39 =
932
2
|
20.
959 + 39 =
2
998
|