Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
413 – 16 =
397
2
|
2.
184 + 598 =
782
2
|
3.
172 + 598 =
770
2
|
4.
858 + 130 =
2
988
|
|
5.
993 + 1 =
994
2
|
6.
901 – 293 =
608
2
|
7.
960 + 35 =
2
995
|
8.
34 + 61 =
2
95
|
|
9.
911 + 23 =
934
2
|
10.
340 + 538 =
878
2
|
11.
256 + 367 =
2
623
|
12.
818 – 38 =
780
2
|
|
13.
2 – 1 =
2
1
|
14.
152 – 38 =
114
2
|
15.
420 + 278 =
2
698
|
16.
294 – 61 =
233
2
|
|
17.
937 – 739 =
2
198
|
18.
946 + 46 =
2
992
|
19.
207 – 201 =
6
1
|
20.
759 – 28 =
731
2
|