Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
912 – 648 =
2
264
|
2.
8 – 8 =
0
2
|
3.
72 – 34 =
38
2
|
4.
241 – 216 =
25
2
|
|
5.
322 – 134 =
2
188
|
6.
5 – 0 =
5
1
|
7.
556 – 180 =
376
2
|
8.
472 + 425 =
2
897
|
|
9.
810 – 505 =
2
305
|
10.
249 – 10 =
239
2
|
11.
67 + 697 =
764
2
|
12.
557 + 303 =
860
2
|
|
13.
497 + 47 =
544
2
|
14.
847 + 22 =
2
869
|
15.
545 + 72 =
2
617
|
16.
712 + 266 =
978
2
|
|
17.
459 – 379 =
80
2
|
18.
461 + 432 =
893
2
|
19.
486 – 467 =
2
19
|
20.
180 – 16 =
2
164
|