Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
784 – 572 =
212
2
|
2.
595 – 422 =
2
173
|
3.
654 – 54 =
2
600
|
4.
790 – 123 =
667
2
|
|
5.
416 – 17 =
2
399
|
6.
918 – 308 =
610
2
|
7.
589 + 368 =
2
957
|
8.
248 – 137 =
2
111
|
|
9.
695 – 259 =
2
436
|
10.
202 – 38 =
164
2
|
11.
5 – 2 =
1
3
|
12.
226 + 339 =
2
565
|
|
13.
529 + 244 =
773
2
|
14.
869 + 14 =
2
883
|
15.
985 + 2 =
2
987
|
16.
28 + 216 =
2
244
|
|
17.
842 – 743 =
99
2
|
18.
737 + 26 =
2
763
|
19.
607 + 107 =
2
714
|
20.
267 + 313 =
2
580
|