Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
202 – 148 =
2
54
|
2.
874 + 125 =
2
999
|
3.
263 – 217 =
2
46
|
4.
514 – 476 =
2
38
|
|
5.
690 + 137 =
2
827
|
6.
291 – 113 =
178
2
|
7.
509 + 56 =
565
2
|
8.
32 + 270 =
302
2
|
|
9.
793 – 36 =
757
2
|
10.
445 – 270 =
2
175
|
11.
233 + 568 =
2
801
|
12.
211 + 111 =
322
2
|
|
13.
17 – 10 =
7
1
|
14.
258 + 309 =
2
567
|
15.
493 + 13 =
2
506
|
16.
167 – 30 =
137
2
|
|
17.
929 – 262 =
667
2
|
18.
677 – 181 =
496
2
|
19.
696 – 8 =
688
2
|
20.
819 – 205 =
2
614
|