Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
194 + 483 =
677
2
|
2.
519 + 117 =
636
2
|
3.
58 + 235 =
293
2
|
4.
924 + 73 =
997
2
|
|
5.
663 – 356 =
2
307
|
6.
120 + 489 =
609
2
|
7.
431 – 295 =
136
2
|
8.
141 – 105 =
36
2
|
|
9.
415 + 147 =
562
2
|
10.
915 + 80 =
2
995
|
11.
801 – 662 =
139
2
|
12.
724 – 44 =
680
2
|
|
13.
643 + 7 =
2
650
|
14.
972 + 10 =
2
982
|
15.
231 + 241 =
472
2
|
16.
900 – 566 =
334
2
|
|
17.
323 – 252 =
71
2
|
18.
525 + 215 =
740
2
|
19.
603 – 297 =
306
2
|
20.
12 + 804 =
816
2
|