Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
619 + 159 =
2
778
|
2.
354 – 20 =
2
334
|
3.
197 + 308 =
505
2
|
4.
58 – 13 =
45
2
|
|
5.
37 + 907 =
944
2
|
6.
435 + 512 =
947
2
|
7.
140 – 135 =
1
5
|
8.
790 + 193 =
2
983
|
|
9.
938 + 55 =
993
2
|
10.
514 – 239 =
275
2
|
11.
685 + 273 =
2
958
|
12.
278 + 586 =
2
864
|
|
13.
627 + 164 =
791
2
|
14.
306 – 48 =
2
258
|
15.
862 – 841 =
2
21
|
16.
6 – 4 =
2
1
|
|
17.
607 – 541 =
2
66
|
18.
323 – 137 =
2
186
|
19.
290 + 513 =
2
803
|
20.
831 + 132 =
963
2
|