Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
647 – 227 =
2
420
3
4
|
2.
126 – 111 =
15
3
2
1
|
3.
544 + 39 =
4
3
583
2
|
4.
963 + 1 =
2
3
964
4
|
|
5.
83 – 62 =
21
4
3
2
|
6.
123 – 19 =
4
2
3
104
|
7.
201 – 124 =
2
4
3
77
|
8.
793 – 137 =
4
3
2
656
|
|
9.
804 + 95 =
4
899
3
2
|
10.
162 + 145 =
4
3
307
2
|
11.
986 + 1 =
987
3
2
4
|
12.
355 + 472 =
2
827
3
4
|
|
13.
105 + 293 =
3
2
398
4
|
14.
426 – 225 =
4
2
201
3
|
15.
74 + 727 =
3
4
2
801
|
16.
47 + 400 =
2
4
447
3
|
|
17.
239 + 649 =
4
888
3
2
|
18.
11 + 243 =
4
254
2
3
|
19.
817 – 427 =
3
390
4
2
|
20.
235 – 109 =
4
126
2
3
|