Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
151 + 734 =
2
885
3
4
|
2.
1 + 606 =
3
2
4
607
|
3.
948 + 11 =
3
4
2
959
|
4.
117 + 587 =
2
704
3
4
|
|
5.
104 + 405 =
509
2
4
3
|
6.
146 + 257 =
403
3
4
2
|
7.
391 + 489 =
880
4
2
3
|
8.
241 – 13 =
2
4
3
228
|
|
9.
191 + 62 =
2
3
4
253
|
10.
791 – 128 =
4
2
663
3
|
11.
858 – 390 =
468
3
2
4
|
12.
263 – 221 =
4
2
42
3
|
|
13.
74 – 54 =
3
4
2
20
|
14.
925 – 298 =
3
627
2
4
|
15.
22 – 9 =
3
1
13
2
|
16.
516 + 13 =
3
4
529
2
|
|
17.
946 + 20 =
2
966
4
3
|
18.
906 + 28 =
2
4
3
934
|
19.
219 – 2 =
217
3
4
2
|
20.
524 – 157 =
367
4
2
3
|