Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
210 – 147 =
63
2
4
3
|
2.
3 + 381 =
4
2
3
384
|
3.
467 – 278 =
2
189
3
4
|
4.
729 + 60 =
4
789
3
2
|
|
5.
509 + 165 =
2
3
674
4
|
6.
666 + 261 =
4
2
927
3
|
7.
122 – 61 =
4
61
2
3
|
8.
30 – 6 =
3
24
2
4
|
|
9.
829 – 536 =
2
3
4
293
|
10.
720 – 15 =
705
3
4
2
|
11.
423 – 382 =
3
41
2
4
|
12.
222 – 87 =
3
4
2
135
|
|
13.
238 + 716 =
3
954
2
4
|
14.
119 – 105 =
1
3
14
2
|
15.
284 – 11 =
3
273
2
4
|
16.
456 – 139 =
2
3
317
4
|
|
17.
152 + 122 =
2
3
274
4
|
18.
401 – 10 =
3
391
2
4
|
19.
859 + 49 =
908
2
4
3
|
20.
211 + 244 =
4
2
455
3
|