Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
914 + 36 =
950
2
|
2.
294 – 62 =
2
232
|
3.
787 – 287 =
500
2
|
4.
224 + 51 =
275
2
|
|
5.
817 + 176 =
2
993
|
6.
558 – 553 =
1
5
|
7.
607 – 85 =
522
2
|
8.
482 + 285 =
2
767
|
|
9.
511 – 315 =
196
2
|
10.
674 + 252 =
926
2
|
11.
244 + 546 =
790
2
|
12.
172 + 8 =
2
180
|
|
13.
97 + 332 =
429
2
|
14.
994 + 3 =
2
997
|
15.
678 + 145 =
823
2
|
16.
588 – 298 =
290
2
|
|
17.
253 + 17 =
2
270
|
18.
472 + 509 =
2
981
|
19.
431 + 334 =
765
2
|
20.
472 + 503 =
975
2
|