Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
380 – 5 =
2
375
|
2.
631 – 400 =
231
2
|
3.
407 – 397 =
10
1
|
4.
341 – 175 =
2
166
|
|
5.
751 – 368 =
383
2
|
6.
997 – 884 =
2
113
|
7.
393 – 100 =
293
2
|
8.
667 – 506 =
2
161
|
|
9.
981 – 833 =
2
148
|
10.
254 – 18 =
236
2
|
11.
607 – 171 =
436
2
|
12.
290 + 27 =
2
317
|
|
13.
173 + 311 =
2
484
|
14.
206 – 138 =
68
2
|
15.
367 – 229 =
2
138
|
16.
664 – 458 =
2
206
|
|
17.
858 + 88 =
2
946
|
18.
100 – 43 =
57
2
|
19.
867 – 372 =
2
495
|
20.
84 – 7 =
77
2
|