Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
2 + 465 =
467
2
|
2.
868 + 91 =
2
959
|
3.
359 + 328 =
2
687
|
4.
803 + 167 =
2
970
|
|
5.
733 – 152 =
581
2
|
6.
957 – 439 =
518
2
|
7.
476 – 86 =
390
2
|
8.
493 + 341 =
834
2
|
|
9.
216 + 38 =
254
2
|
10.
45 – 25 =
20
2
|
11.
392 – 270 =
122
2
|
12.
415 – 275 =
140
2
|
|
13.
734 – 443 =
2
291
|
14.
487 – 27 =
460
2
|
15.
174 – 108 =
2
66
|
16.
315 – 136 =
2
179
|
|
17.
483 – 158 =
2
325
|
18.
645 – 44 =
2
601
|
19.
635 – 151 =
484
2
|
20.
645 + 25 =
670
2
|