Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
146 – 52 =
2
94
|
2.
466 + 478 =
944
2
|
3.
470 – 406 =
64
2
|
4.
443 + 541 =
984
2
|
|
5.
693 – 542 =
151
2
|
6.
84 – 3 =
2
81
|
7.
905 + 49 =
2
954
|
8.
611 + 36 =
647
2
|
|
9.
1000 – 957 =
2
43
|
10.
94 – 73 =
21
2
|
11.
185 + 267 =
452
2
|
12.
707 – 281 =
426
2
|
|
13.
332 + 240 =
2
572
|
14.
261 + 661 =
2
922
|
15.
446 – 149 =
297
2
|
16.
292 – 13 =
279
2
|
|
17.
338 – 58 =
2
280
|
18.
381 – 109 =
272
2
|
19.
9 – 6 =
1
3
|
20.
360 – 65 =
2
295
|