Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
11 – 11 =
0
2
4
3
|
2.
311 + 683 =
994
4
2
3
|
3.
816 + 27 =
843
3
2
4
|
4.
918 – 87 =
3
4
831
2
|
|
5.
402 + 1 =
403
3
4
2
|
6.
901 – 125 =
3
4
776
2
|
7.
775 + 112 =
4
2
3
887
|
8.
783 + 146 =
929
4
2
3
|
|
9.
761 – 242 =
519
3
4
2
|
10.
221 – 33 =
3
188
4
2
|
11.
650 – 169 =
2
3
481
4
|
12.
23 – 22 =
2
4
3
1
|
|
13.
111 – 30 =
4
2
3
81
|
14.
482 – 446 =
3
4
36
2
|
15.
468 – 271 =
3
4
197
2
|
16.
613 + 241 =
3
2
4
854
|
|
17.
15 + 350 =
4
3
2
365
|
18.
248 – 101 =
4
147
3
2
|
19.
275 – 78 =
4
197
3
2
|
20.
273 – 46 =
227
3
2
4
|