Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
243 – 151 =
92
2
|
2.
176 + 773 =
949
2
|
3.
25 – 24 =
1
2
|
4.
571 – 105 =
2
466
|
|
5.
805 + 195 =
2
1000
|
6.
295 + 665 =
960
2
|
7.
32 + 336 =
368
2
|
8.
658 + 342 =
1000
2
|
|
9.
552 – 436 =
2
116
|
10.
43 – 2 =
41
2
|
11.
952 + 43 =
2
995
|
12.
845 + 148 =
2
993
|
|
13.
196 – 146 =
2
50
|
14.
246 + 168 =
414
2
|
15.
660 + 101 =
761
2
|
16.
267 – 116 =
151
2
|
|
17.
96 – 75 =
21
2
|
18.
349 – 175 =
2
174
|
19.
486 – 328 =
2
158
|
20.
277 + 302 =
579
2
|