Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
206 + 346 =
552
2
|
2.
697 + 242 =
2
939
|
3.
845 + 93 =
938
2
|
4.
724 – 304 =
2
420
|
|
5.
70 – 47 =
2
23
|
6.
937 – 680 =
2
257
|
7.
683 + 74 =
2
757
|
8.
641 – 223 =
2
418
|
|
9.
243 + 518 =
761
2
|
10.
980 + 12 =
992
2
|
11.
346 – 97 =
2
249
|
12.
358 + 560 =
2
918
|
|
13.
98 – 55 =
43
2
|
14.
675 + 198 =
873
2
|
15.
622 – 34 =
2
588
|
16.
783 – 96 =
687
2
|
|
17.
663 + 259 =
2
922
|
18.
154 – 21 =
2
133
|
19.
894 + 35 =
929
2
|
20.
642 – 305 =
337
2
|