Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
255 + 658 =
2
913
|
2.
771 – 5 =
2
766
|
3.
364 – 232 =
132
2
|
4.
424 + 322 =
746
2
|
|
5.
350 – 314 =
2
36
|
6.
567 + 117 =
684
2
|
7.
152 + 248 =
2
400
|
8.
770 + 92 =
2
862
|
|
9.
993 – 63 =
930
2
|
10.
687 – 373 =
314
2
|
11.
210 – 115 =
2
95
|
12.
381 – 377 =
4
1
|
|
13.
257 – 228 =
2
29
|
14.
773 + 116 =
2
889
|
15.
942 – 778 =
2
164
|
16.
452 + 392 =
2
844
|
|
17.
758 – 447 =
2
311
|
18.
16 + 897 =
913
2
|
19.
581 + 330 =
911
2
|
20.
871 + 31 =
902
2
|